Grim Anticheat icon

Grim Anticheat -----

Fully async, multithreaded, predictive, open source, 3.01 reach, 0.01% speed, 1.8-1.21 anticheat




Version: 2.3.67
Good plugin but auto clicker is working in my server (with Grim).........................................................

Version: 2.3.67
Update Version On 1.21.3, PLSSSSSSSSSSSSSSSSSSSS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Version: 2.3.67
By far the best free anti-cheat. It prevents hackers from hacking before they can cause any damage, and then bans them (or just alerts an admin, or anything else). For my Paper 1.21.3 server I needed to compile it from GitHub but that only took a minute and now it works great. Some false positives but mostly just on laggy servers.

Version: 2.3.67
Hello friend, do you know why in 1.17.1 it throws false alerts? directly one cannot even move, I await your response, or test it if you like on a 1.17.1 server thanks :D <3

Version: 2.3.67
really 6.69 mb just a joke to grimac, XDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

Version: 2.3.67
Best anticheat! Good NoSlow checks, but very false simulation, NoFall. I recommend this anticheat for your server

Version: 2.3.67
I've been using grim for almost two years, and i have no complains about it. This is by far the best option when it comes to free anticheat plugins, I have never used any premium options so i can't compare it to the paid ones, but by reading the community messages i know that even comparing to these other options, grim still a good option.Thanks for maintaining this amazing plugin!

Version: 2.3.67
Grim is one of the best anticheat i have ever seen. but recently im getting a problem with grim 'Invalid Player Data' is there any way to fix it.It will be si nice then

Version: 2.3.67
simulation updates are in extreme need to fix false positives,
for example on 1.8 w-tap, checks that you add (example: bad packets a-z) They almost never worked on cheaters.

Version: 2.3.67
Grim is still one of the best free anti cheats out there. It blocks most movement cheats. Keep in mind that it still has some flaws and will get bypassed with the right config. You should be fine on a server with a smaller not competetive player base. If you plan using Grim on a minigames/pvp server I'd recommend combining it with Vulcan. If you have a higher budget use Intave.

Version: 2.3.67
grimac is great for pvp server but when it comes to smp server make sure you installed elytra cooldown plugin to limit the use of firework on elytra, if you encounter a server with grimAC installed, try to fly fast with elytra and the server will crash in a second, i've try it on so many server and it works, idk what causes this to happen, but overall this plugin is great since is free and open source.

Version: 2.3.66
Grimac is one of the most important plugins on my server, players will not be able to cheat, which is very good. I am grateful to those in the open-source community who have worked on this—it's truly remarkable. I hope it can continue to be compatible with the latest versions. My server has been using Grimac since version 1.19.4, and the current version is 1.21.1.

Version: 2.3.66
Current Status: The simulation check for bypassing this anti-cheat is currently being tested, and as of now, this anti-cheat is only suitable for a test server—nothing more. However, you continue to add various "badpackets," creating a whole alphabet of useless checks that have never flagged me in my life.

TIP FOR CHEATERS:
USE LIQUIDBOUNCE AND ENJOY IT WHILE YOU CAN—THE ADMINS HAVEN'T EVEN FIXED THE SIMULATIONS THAT FLAG YOU FOR NO REASON YET.

Version: 2.3.66
The person below does not understand our intentions. I understand that grim is an open source project supported by the community, and that everyone adds what they want there.

I think that instead of a bunch of everything that you constantly add, you could get together in a group and fix the already freaking false positives that are already 2 years old!!! Rather than creating an alphabet from badpackets of checks!!!

Anti-cheat includes a whole alphabet of checks on badpackets, if you are looking for antiexploit, log4j fixer, anricrasher 3 in 1, then this is the anti cheat for!!!!

By the way, the checks for simulation are bad, there is no information about the transcoding of these checks, the flags for the types of tap and large cps are constant, they are not available on new versions. I recommend everyone to switch to Spartan and not worry.

There are a lot of false ones about simulation hanging on the grim github, and they're all somewhere down there, which is funny, these guys don't clean issues and most of their issues are garbage that doesn't even carry a semantic load, and normal issues get lost somewhere and forget about them.

#freedurov

Version: 2.3.66
The people below have no idea what they are talking about, it's obvious brigading and they are complaining about CHECKS BEING ADDED? Probably mad cheaters.

Grim was originally developed by defineoutside and is now community maintained, people need to stop expecting everything for free.

I have worked on Grim for a while now and it is a great learning tool for understanding the game's mechanics.

Yes, the simulation will false flag in some cases, but it prevents cheating. There are no fly or speed or non-vanilla velocity bypasses that exist currently.

If you want a false fixed, then do it yourself and PR it. Or go make your own simulation engine and realise how much effort defineoutside had to put in without an open source simulation anticheat being available as a resource to learn from.

Version: 2.3.66
Anti-cheat includes a whole alphabet of checks on badpackets, if you are looking for antiexploit, log4j fixer, anricrasher 3 in 1, then this is the anti cheat for!!!!

By the way, the checks for simulation are bad, there is no information about the transcoding of these checks, the flags for the types of tap and large cps are constant, they are not available on new versions. I recommend everyone to switch to Spartan and not worry.

There are a lot of false ones about simulation hanging on the grim github, and they're all somewhere down there, which is funny, these guys don't clean issues and most of their issues are garbage that doesn't even carry a semantic load, and normal issues get lost somewhere and forget about them.

#freedurov

Version: 2.3.66
Current Status: The simulation check for bypassing this anti-cheat is currently being tested, and as of now, this anti-cheat is only suitable for a test server—nothing more. However, you continue to add various "badpackets," creating a whole alphabet of useless checks that have never flagged me in my life.

TIP FOR CHEATERS:
USE LIQUIDBOUNCE AND ENJOY IT WHILE YOU CAN—THE ADMINS HAVEN'T EVEN FIXED THE SIMULATIONS THAT FLAG YOU FOR NO REASON YET.

Version: 2.3.66
Current Status: The simulation check for bypassing this anti-cheat is currently being tested, and as of now, this anti-cheat is only suitable for a test server—nothing more. However, you continue to add various "badpackets," creating a whole alphabet of useless checks that have never flagged me in my life.

TIP FOR CHEATERS:
USE LIQUIDBOUNCE AND ENJOY IT WHILE YOU CAN—THE ADMINS HAVEN'T EVEN FIXED THE SIMULATIONS THAT FLAG YOU FOR NO REASON YET.

Version: 2.3.66
Although it has false detection, it is the best. Please work hard to develop it!

Version: 2.3.66
this anti-cheat suspects 75% of the server players of cheating, it is dangerous to allow this anti-cheat to ban players, it has already banned several normal players !!!
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Author's response
It doesn't automatically ban... You configured it to do so.

Version: 2.3.66
update fixed most falses that i've seen. keep up the good work!

Version: 2.3.65
Стабильно работал 1 месяц и просто перестал, почему - без понятия, автор, исправь пожалуйста

Version: 2.3.65
don't fix false positive with w-tap, they are just too lazy to fix simulations because they are bums.
GLORY TO RUSSIA

Version: 2.3.65
huge number of false alerts update to 1.21 is required do not recommend on versions higher than 1.20.6

Version: 2.3.65
Is there a way to explain the geyser and via version? The truth is that I am not very familiar with what was explained and I do not understand well, in my case I use both the geyser and the via version.

Version: 2.3.65
This plugin is amazing, even compared to premium plugins. Some tweaking does have to be done to checks before using it on your server though

Version: 2.3.65
Its actually sad when people say grim is bad because it has bypasses and false flags, every anticheat has them and 90% of time its not even grim but packetevents issue. You just need right config and if your using it on pvp server just add vulcan and it will fill combat checks: aim, killaura, autoclicker, etc. Keep up the good work even if you are underestimated!!

Version: 2.3.65
Great AntiCheat. Just use it. It has great potential i think. Probably best option for Minecraft servers on latest versions.

Version: 2.3.65
Don't use this in 1.21 . The plugin claims to be updated to 1.21, but makes insanely many false flags and prevent players from moving sometimes
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Author's response
We're aware there's issues with 1.21 (PacketEvents issues). For future notice, please report issues on the github.

Version: 2.3.65
Still a decent anti cheat. Won't false flag like crazy.
Great free movement checks and decent reach check. Should be enough for most servers.

Version: 2.3.65
FALSE POSITIVES, UNPLAYABLE
USE UPDATED-NOCHEATPLUS GUYS
FALSE POSITIVES, UNPLAYABLE
USE UPDATED-NOCHEATPLUS GUYS

Version: 2.3.65
FALSE POSITIVES, UNPLAYABLE
USE UPDATED-NOCHEATPLUS GUYS
FALSE POSITIVES, UNPLAYABLE
USE UPDATED-NOCHEATPLUS GUYS

Version: 2.3.65
This AntiCheat has a very strict but also very correct flags at players. However, there is a false flag, when player step up the bed, Grim will flag as I think the bed is not 0.5 block so Grim thinks that is step hack and flag legit player.

Version: 2.3.65
Hello, for some reason, when restarting the server, grim writes an Intall Error Server, and a very big error pops up in the console, how can this be fixed?
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Author's response
Please report issues & errors on the github along with what server version you are using.

Version: 2.3.65
The strongest free anti-cheat plugin, solving 99% of player cheating problems!!!

Version: 2.3.65
Best AntiCheat I have ever used. However, there is a very simple false check that I want to fix, whenever a player gets teleported, Grim prevents player from moving and false flagging as Simulation hacks. The teleportation can be caused by plugins, respawn, etc.

Version: 2.3.65
The checks are inadequate. Almost everything gets flagged when enchantments are considered. A player with Depth Strider will experience constant lagging and be flagged by the simulation check while swimming. Similarly, a person using an Efficiency-enchanted pickaxe will be flagged for FastBreak when breaking any block. These are just some flaws I experienced within the first 5 minutes using this anticheat.
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Author's response
This is might be due to a packetevents issue (a dependency grim uses). Please report this issue on the github with what server & client version you are using.

Version: 2.3.65
Good!! Идеальный! Мёд по телу... Спасибо за такой чудесный античит. Всем рекомендую!

Version: 3.3.64
Please update check and flight noslow because there is a bypass. And anticheat is good in terms of move checks and BadPackets

Version: 3.3.64
You need to constantly update this anticheat ..........

Version: 3.3.64
Fix your plugin you cant even teleport to unloaded chunks if you move like i cant just say to my players when you teleport wait a second before you move

Version: 3.3.64
This AC is brutally accurate and outperformed many premium anticheats.
Huge respect for the developer.

I can see this being the main AC on every server in near future.

BTW, I highly suggest adding elytra hitbox checks.

Version: 3.3.64
great anticheat but there is a false positive for noslowb whenever using essentials home or simpletpa

Version: 3.3.64
Great AC, add an option to toggle checks :)
..............................................

Version: 3.3.64
Оставляю отзыв для русскоязычных создателей серверов. Это лучший анти-чит в своём роде для версии 1.20 - он обнаружит практически любой чит на перемещение, киллауру и даже мощнейшие обходы знаменитых nursultan и celka - я просто в шоке! Разработчику респект!!

Version: 3.3.64
Hey man, I left a bad review on grim anti-cheat almost a year ago on an old account. GrimAC has definitely changed since then, I'm getting zero false positives, and it accurately bans and punishes cheaters now. Thanks

Version: 3.3.64
Definitivamente el mejor anticheat, recomendaría complementarlo con otro anticheat para el combate, no daré nombres, pero sin duda alguna el Grim es una increíble opción que no debería de faltar en un servidor, yo lo tengo hasta en el servidor de registro por los Anticrash que tiene. Pruébenlo.

Version: 3.3.64
Me surpeendo a cada atualização, cada vez melhor. Parabens!
É claro que não faz milagre, mas é simples, facil de configurar e bem eficaz.

Version: 3.3.64
The best AC with fairly novel&outstanding idea. The only AC which I'd call next-generation AC. Helpful dev, solid checks. <3

Version: 2.3.62
Its not so good, half my players getting false banned for doing nothing, not great configuarion,
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Author's response
Grim doesn't automatically ban. You would have to have configured it to do so.

Version: 2.3.62
Excellent anticheat. Waiting for the 1.20.6 update ! :)

Version: 2.3.62
Grim is still quite stable and will work for smaller to medium servers. Please keep in mind that using Grim as a standalone anti cheat will result bypasses such as no rotation sprint scaffold, infinite backtrack/timerrange, instant stealer, speed and more. Especially bigger competetive servers will have a hard time with only Grim. I'd recomment using Grim + Vulcan. If you have a higher budged go with Intave or Polar. But Grim will be find for smaller servers.

Version: 2.3.62
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Version: 2.3.62
Quite a good anti-cheat in the public domain, it checks all movements well, but I would like to see a good check for KillAura or add an InvMove check

Version: 2.3.62
Very good anti-cheat, the only downside is that you can't ride a camel
Hopefully, the community will find a way to solve it

Version: 2.3.61
probably THE best FREE anticheat available tho its latest version causes issues with TAB by Neznamy

Version: 2.3.61
To find the number of days until grim 3.0 release, Consider the orbital period of Earth around the Sun, measured in the standard unit of time defined by the duration of 9,192,631,770 periods of the radiation corresponding to the transition between two hyperfine levels of the ground state of the cesium-133 atom. Now, find the integer closest to the quotient obtained when this period is divided by the total number of such standard time units in a solar day. This integer represents the temporal quantifier for the fulfillment of the task at hand.

Version: 2.3.60
Anti-cheat is generally not bad, but there are a lot of bypasses and when trying to fix it, false positives appear >:

Version: 2.3.59
This plugin does not work in version 1.12.2. Please
This plugin does not work in version 1.12.2. Please

Version: 2.3.57
This anticheat is pretty basic, but is good at somewhat stopping fly cheats, knockback cheats, and reach checks.

There are NO aim assist checks in this anticheat, nor any autoclicker cheats. Your players can use use kill-aura as hard as much as they wish.

This plugin blocks Flight pretty decently, teleporting the player to their expected position and not the position they were the last time they were standing on a block.

However, the fly check is easily bypassable by "block-glitching". You can place a block on wall where you normally are not allowed to place a block, and it will not stop you from jumping on it. This means you can go any distance vertically. This is not an error/bug report.

Overall: 6.5/10 Anticheat. Why did I give 5 stars? because even though this is horseshit, it's better than other anticheat plugins, so keep itup @AoElite! You're the best.
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Author's response
Since it's a open source anticheat there's some checks missing intentionally like killaura & aimassist. Some recent changes help with the ghost block issue, you can configure it to be more aggressive.

Version: 2.3.57
godddddddddddddd pluginnnnnnnnnnnnnnnn goooooooodddddddddddddddddddddddddddddddddddddddddddddddd

Version: 2.3.57
Best free anticheat out there but sometimes false flagges, i really advise to use this anticheat combined with vulcan

Version: 2.3.57
An excellent anti-cheat, it's a bomb! I respect the efforts of the developer; such strict checks probably take a long time.
Question for filling: when will there be really cool battalion commander checks?

Version: 2.3.57
Of all the anti-cheats that I have tested, this is probably the best, I sincerely hope that the developers will take it seriously, as cheats on minecraft is very much, I think it is even worth introducing a paid premium version of this anti-cheat to support developers

Version: 2.3.57
The anticheat is very good! I would like to kiss the anticheat developers!

Out of the box, anti-cheat needs to be configured, otherwise you can get
a lot of false flags for simulation.

Version: 2.3.55
Very nice and outstanding plugin! Better than most paid anti cheat if the option were 0 to 10 id give this 1000!

Version: 2.3.55
I have tried Spartan Vulcan NoCheatPlus GodsEye but this is the best anti cheat I ever seen I love it and the one that make it
also , I which I can contact the developer

Version: 2.3.55
Uhm, we've tested this anticheat, and it feels like when we used NCP. Players can't even lift off a few inches from the ground using fly hacks, and it covers pretty much everything flawlessly.

Everything except killaura I believe. I know this is a hard hack to stop, and I haven't tested the check too much indepth, but I suspect it's not being covered efficiently.

Version: 2.3.54
Best free anticheat. Developers are responsive as well. While there are some false positives, none of them go beyond slowing down people's mining or are fixed quickly.

Version: 2.3.54
Great AC.

Please add the discord link on the Spigot page so we can report false flags and bugs.

Version: 2.3.54
Thanks for the update. The recent false flags required me to disable the plugin entirely.

Version: 2.3.52
Last tree bug got fixed, but there seems to be another one. Player reported to me that when he takes items out of hoppers they go back into the hopper when he closes inventory. Problem doesnt occur with grim.exempt

Version: 2.3.52
Still great and solid anti cheat. Nice to see it being updated!
It has a free open sourced movement simulation, even through it falses a lot on newer versions. Don‘t expect something great from the combat checks. Grim works great in combination with another anti cheat. (like Vulcan)

Version: 2.3.52
hurrah the bugs were patched -- this anticheat is amazing lmao

Version: 2.3.49-patch1
Great ac. False positives: when a player destroys wood with an axe it shows an alert and player need to destroy 2 times :( Fix it!!!

Version: 2.3.49-patch1
I deop myself and use a example mod and start flying and it stops me from flying but doesnt alert the console, i even tried with op, please fix.

Version: 2.3.49-patch1
Not bad, but I thing version 2.3.43 had better nofall prevention and better scaffold prevention

Version: 2.3.49-patch1
I moved from 2.3.43 to 2.3.49-patch1, I'm going back to 2.3.43 .................

Version: 2.3.49-patch1
1.20.4 Servers are unplayable. You have to break all trees twice when holding a tool that speeds up like an axe. Please fix ASAP!

Version: 2.3.49
Need fix fastbreak in 1.20.4 because he make big problem for cut tree or others one

Version: 2.3.49
i'm also experiencing problems with fastbreak; it does not appear to allow you to break any blocks.

Version: 2.3.49
in version 2.3.49 all the players struggle to break any blocks because of "fastbreak"

Version: 2.3.46
I used this anti-cheat on my every server. No problems, no cheaters, easy configuration. This anti-cheat is the best one of the free ones.

Version: 2.3.46
I've tried using Spartan for years. Every time I had major problems. Finally tried switching to Grim Anti-Cheat and it works better. My players stopped encountering issues and I tried using hacks- of those I tried it blocked some of them. That's all I ask for- blocking the major hacks without impacting the experience of non-hacking players. Thank you.

Works on Paper 1.20.2

Version: 2.3.46
Отличный анти чит но хотелось бы возможность отключать некоторые проверки например я хочу чтобы работал easyplacemode в litematica. Если это уже есть можно объяснить как его разрешить.

Version: 2.3.46
i love grim and defineoutside! this is the best anticheat ever. I hope it gets updated regularly

Version: 2.3.46
Great anticheat, all the negative reviews just mad they cant properly download a plugin, it really is the best free anticheat, and one of THE best anticheats

Version: 2.3.46
GrimAC: A rock-solid open-source anticheat, compatible with multiple Minecraft versions. Precise movement detection, even catching rare cheats. Note: exemptions for Geyser and specific backend setup with Floodgate/ViaVersion. A reliable choice for server security.

Version: 2.3.46
10/10, I wish you had a Discord server tho, would be great and I think people would join it

Version: 2.3.45
Great anticheat but please update to 1.20.2 (it does not work on this server version). Thanks!

Version: 2.3.45
Great free anti cheat!
Sure, it‘s missing some checks, but a free open source movement simulation is all you need! Would recommend Grim in a combination with another anti cheat like Vulcan.

Version: 2.3.45
Great antiheat, no problems so far and quick support from the author. Referring to the end of support, I would choose option 3.

Version: 2.3.45
Good anticheat, doesnt detect some bridging hacks on some clients and antikb + falses it sometime, 5x. overall the best free out there

Version: 2.3.45
I'm using the latest protocolib but still the error doesn't work, I can't find a workaround, what should I do?

Version: 2.3.45
Some shitty discontinued client can bypass grim its shit may look good, but rise client will destroy it without config
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Author's response
You made a spigot account just to leave a negative review on grim? Why?

Version: 2.3.45
how the hell do you disable a check? my printer gets false flagged i wanna disable that certain flag, and the wiki isnt working as well.

Version: 2.3.43
Anti cheat its self is good only problem is that it doesnt work for network servers for example if the server is 1.8-1.16 (viaversion) and my server is on 1.8
and if 1.16 player joins he gets flaged with Timer and can not move sometimes and when players is underwater he just gets stuck there and dies
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Author's response
don't put via on the proxy, put it on the backends

Version: 2.3.43
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Pls 1.20 1 version. I really need this.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Version: 2.3.43
>>>>>>>>>>>>>>>>>>>>>>>>>>
I agree with Roverb, great plugin.
>>>>>>>>>>>>>>>>>>>>>>>>>>

Version: 2.3.43
make this plugin paid, i want to pay for it for my server and have a good support & better updates.

Version: 2.3.43
This anticheat is very good. I tested it today.
Please keep updating the plugin!

Version: 2.3.43
Really good AntiCheat. It's probabbly one of the best AntiCheat ever, and for sure the best free and open source one. We really need an open source AntiCheat like this. I hope it will still be maintained.

Version: 2.3.43
This anticheat is awesome. I tested it today and it did what I expected it to do. Please don't stop, we need an open source anticheat like this.

Version: 2.3.43
The anticheat is really very good but with ProtocolSupport that make me standing when joined the server and mostly i can't move on 1.8, please add support for ProtocolSupport

Version: 2.3.43
Это лучший Анти-чит на данное время пожалуйста добавьте авто обновление! 321123321

Version: 2.3.43
The best free anticheat plugin out there to absolutely obliterate hackers!
Just add a update checker for the plugin and its a beast

Version: 2.3.43
Very good anticheat i think that the first option was the best as the anticheat has ton of bypass:es

Version: 2.3.43
thanks for creating best anticheat for 2023 year.
========================================

Version: 2.3.43
I can't believe it, it's updated, so happy
Thank you very much,You helped a lot of people

Version: 2.3.42
Please keep updating the plugin! Don't give up! You have a lot of fans!!! Keep updating it for 1.20.1 and more! :(

Version: 2.3.42
As per the options you have put, I would happily pay if you made GrimAC a paid product with more support. This is hands down the best anti-cheat I've ever used.

Version: 2.3.42
Noo.. Please, dont stop supporting best anticheat on spigot. We really need you hard.

Version: 2.3.42
Thanks for updating to the new version, if you would be willing to buy this anticheat in a new paid version!

Version: 2.3.42
Thank you Define for your hard work, it was a pleasure talking to you and seeing your train of thought in discord. The fact that you provided support and constant updates to Grim. You are a very smart man if you could do such a thing, but what's next? I got a little sillier, but I still want to see the fate of this resource.

Version: 2.3.42
Thank you for the 1.20 update. This plugin is incredibly lightweight, effective, and easy to use. We greatly appreciate this author's work on Grim. Thanks!

Version: 2.3.42
Thank you for maintaining this for as long as you did.
Great AntiCheat

Version: 2.3.40 hotfix 1
it is free and reliable, for new minecraft admin, this is the way to go. Some alternatives that are paid maybe vulcan and spartan, i used vulcan because my friend has it, and i also put it in my server, also grim and vulcan can be used together.

The dev said this is discontinued for 1.20? or 1.20 comes later, but i found the fork already for this. IDK if this is legit or not, let me know reader :). Meanwhile i'm sticking with 1.19.4 for my server.

The fork(?):
https://www.spigotmc.org/resources/grim-anticheat-by-goodmc.110458/

Version: 2.3.40 hotfix 1
I've tried so many anti cheats and all of them are garbage compared to this one, this is a W anti cheat. Its a shame to see that you're no longer updating grim.

Version: 2.3.40 hotfix 1
NO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Version: 2.3.40 hotfix 1
This anti-cheat was great and probably the only free anti-cheat that's good. It's sad that it's going to be discontinued for 1.20. but why did I rate it 4 stars? Well, you see me and my friends complained about the anti-cheat flagging underwater with depth strider boots out of all the free anti-cheats I tested so far I have to give this one a 7.8/10

Version: 2.3.40 hotfix 1
Had to give the 5 stars. Just amazing. No issues and everything has worked like it should. Sad to see that 1.20 is the last one. Would love to see forks after this.

Version: 2.3.40 hotfix 1
Any updates for version 1.20 ?

Version: 2.3.40 hotfix 1
Best anticheat ever. Too bad it's no longer maintained, we'll have to update ourselves ;(

Version: 2.3.40 hotfix 1
I know it's kinda too late but I finally wanna take my time and give this the 5 stars that it deserves. All other free anticheats that I've tried either had hilarious bypasses or flagged for the most basic things like swimming or even headhitter. This anticheat covers so many edgecases that even some paid anticheats dont even try to cover and just exempt players causing insane exploits. And it's not just free but also open source. What you, DefineOutside, have done is revolutionary for the anticheat community and while it's sad that this is getting discontinued I think it will live on forever through forks.
And yes I know it's not perfect and that there are bypasses and false positives just like with any anticheat and looking at how toxic some people are regarding that I can definitely understand why you no longer wanted to work on this.

Version: 2.3.40 hotfix 1
The best anti-cheat, but no longer supported 1.20. This is the worst news I've heard this year.

Version: 2.3.40 hotfix 1
An important benchmark in the history of free anti-cheating, although you no longer support him, but you have made a great contribution

Version: 2.3.40 hotfix 1
Very good AC - fast response from the author! I recommend using it on your servers

Version: 2.3.40 hotfix 1
super very top anitcheat great wow wow wow this is top i love mwhunter, great grimac хз че еще написать ну рил классный АЧ)

Version: 2.3.40 hotfix 1
Better than the premium anticheats Lmao !

Version: 2.3.40 hotfix 1
Demasiado bueno, excelente y profesional. Usando en servidor Paper 1.19.4 . Además se traduce automaticamente!

Version: 2.3.40 hotfix 1
ProtocolLib 5.0.0, 100mb of logs.

[13:41:41 WARN]: [ac.grim.grimac.shaded.com.github.retrooper.packetevents.PacketEventsAPI] PacketEvents caught an unhandled exception while calling your listener.
java.lang.NullPointerException: null

Version: 2.3.40 hotfix 1
Hey! Awesome plugin! 10/10, working perfectly, 100% recommended for all servers.
Just a quick *request* for future releases since I could not find the discord. Please make your version in the grim pom.xml the same as the one on SpigotMC since it false flags my discord update webhook. https://media.discordapp.net/attachments/1074746944188055676/1100444613371777094/image.png?width=851&height=336
Sorry for posting this request here and if I could please send me the link to the discord.

Version: 2.3.40 hotfix 1
Waiting for MySql! Project so sick! Waiting for good updates and some new features! Grim its future of anticheating

Version: 2.3.40 hotfix 1
Hello, could you tell me, I want to configure the "NoSlow" function, what does "setbackvl" and "decay" mean, I'll start with "setbackvl" by default, I have "5" and what does it give? to teleport back? what happens if you put "1" or "10" now "decay" what does it do? the default is "0.05" but what happens if you put "0.001" or "0.01" or "1.0" or "0.001" is not allowed? I just want to set up the noslow perfectly, for some reason there are false movements in the water, here I set it up perfectly, there are no false movements, but when I go into the water I have false movements, maybe you didn’t do something in the water? And yet, when I turned on noslow in the cheats, I jump and eat, grim immediately finds that I'm booing under "NoSlow" but when I just run and don't jump, does it not immediately kick? you can fix it so that even when I run but don’t jump, so that grim also immediately kicks, otherwise it turns out that when I run and jump, it immediately kicks, and when I just run, it doesn’t kick right away, sorry for such a big message, I will really be I'm glad if you fix it, thanks a lot!

Version: 2.3.40 hotfix 1
I'm sorry I can't donate money to you, can you please fix the flight of elytra for me please, I don't know how to explain to you, but I can send you a short video from youtube, please I can watch, I will be very glad to you, so thanks for understanding https://www.youtube.com/watch?v=55DtD10PVwg

Version: 2.3.40 hotfix 1
Hello dear developer, I live in Russia, but I can’t donate to you via paypal, so sanctions, can you please think of something so that I can donate to you, since I want you to fix some bugs that I found
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Author's response
You will have better luck getting MachineBreaker#2242 to fix them than me.

Version: 2.3.40 hotfix 1
It's an excellent anticheat in terms of blocking movements, about the combat system, I'm still expecting something for the Autoclicker and Aimassist, in the meantime. Va execelente

Version: 2.3.40
best anticheat for minecraft.
Some Problems:
- Stopped actively correcting errors and false positives

Version: 2.3.40
This is a great anticheat, love it! However it only took a while for me to bypass it with a random "utility" that I've made.
[spoiler] https://github.com/itzispyder/clickcrystals[/spoiler][spoiler]The above has always bypassed vulcan, astro, and other anticheats[/spoiler]

Version: 2.3.39
the best anticheat. AND ITS FREE LIKE WTF.
For being a free anticheat it's so good (for movement checks)
Autoclicker checks sometimes can false flag, but it's okay.

Version: 2.3.39
Sin dudas el mejor anticheat gratuito que hay en spigot, estaba que me iba por Spartan pero este es justo lo que necesito, gracias!

Version: 2.3.39
I'm very pleased that I found it. Probably 10x better than NCP. Sadly if it will be paid in the future, because I can't use PayPal in my country, but for now it's just the best one of all free anti-cheats that you can find. Many thanks for Grim developers!

Version: 2.3.39
The best AntiCheat is in 2023, and Grim checks are more stringent than any known AntiCheat.

Version: 2.3.39
One of the best and the most efficient anti cheat ever for movement, even better than paid anticheats.

Version: 2.3.38
The plugin causes such an error when throwing out a stack of blocks and spamming the console with this:

java.lang.IndexOutOfBoundsException: Index -1 out of bounds for length 46
at jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:100) ~[?:?]
at jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:106) ~[?:?]
at jdk.internal.util.Preconditions.checkIndex(Preconditions.java:302) ~[?:?]
at java.util.Objects.checkIndex(Objects.java:385) ~[?:?]
at java.util.ArrayList.get(ArrayList.java:427) ~[?:?]
at ac.grim.grimac.utils.inventory.inventory.AbstractContainerMenu.getSlot(AbstractContainerMenu.java:423) ~[grimac-2.3.38.jar:?]
at ac.grim.grimac.utils.latency.CompensatedInventory.onPacketReceive(CompensatedInventory.java:276) ~[grimac-2.3.38.jar:?]
at ac.grim.grimac.manager.CheckManager.onPacketReceive(CheckManager.java:174) ~[grimac-2.3.38.jar:?]
at ac.grim.grimac.events.packets.CheckManagerListener.onPacketReceive(CheckManagerListener.java:534) ~[grimac-2.3.38.jar:?]
at ac.grim.grimac.shaded.com.github.retrooper.packetevents.event.PacketReceiveEvent.call(PacketReceiveEvent.java:45) ~[grimac-2.3.38.jar:?]
at ac.grim.grimac.shaded.com.github.retrooper.packetevents.event.EventManager.callEvent(EventManager.java:54) ~[grimac-2.3.38.jar:?]
at ac.grim.grimac.shaded.com.github.retrooper.packetevents.util.PacketEventsImplHelper.handleServerBoundPacket(PacketEventsImplHelper.java:43) ~[grimac-2.3.38.jar:?]
at ac.grim.grimac.shaded.io.github.retrooper.packetevents.injector.handlers.PacketEventsDecoder.read(PacketEventsDecoder.java:51) ~[grimac-2.3.38.jar:?]
at ac.grim.grimac.shaded.io.github.retrooper.packetevents.injector.handlers.PacketEventsDecoder.decode(PacketEventsDecoder.java:58) ~[grimac-2.3.38.jar:?]
at ac.grim.grimac.shaded.io.github.retrooper.packetevents.injector.handlers.PacketEventsDecoder.decode(PacketEventsDecoder.java:35) ~[grimac-2.3.38.jar:?]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88) ~[netty-codec-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[netty-codec-4.1.87.Final.jar:4.1.87.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318) ~[netty-codec-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[netty-codec-4.1.87.Final.jar:4.1.87.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318) ~[netty-codec-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286) ~[netty-handler-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.handler.flush.FlushConsolidationHandler.channelRead(FlushConsolidationHandler.java:152) ~[netty-handler-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562) ~[netty-transport-4.1.87.Final.jar:4.1.87.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.87.Final.jar:4.1.87.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.87.Final.jar:4.1.87.Final]
at java.lang.Thread.run(Thread.java:1589) ~[?:?]

Version: 2.3.38
Hello, can you make it so that I can pay through crypto currency, I live in Russia, I can’t pay through paypal, can you do another support so that I can send money to you there, but please don’t ignore

Version: 2.3.38
Hello, so I'm trying to apply this to my server but it incompatible for some reason. I'm still giving it 4 stars from the amazing reviews!
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Author's response
Check the logs there's usually a helpful message or an error you can report on github

Version: 2.3.37
doesnt work well when players use firework with elytra.
I hope that it gets fixed soon
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Author's response
fixed in 2.5 hours after report - caused by not updating packetevents mappings correctly causing grim to see fireworks attached to players as glow squids attached to players.

Version: 2.3.36
Tested the anticheat on paper 1.19.3 and it was good.
However it kicks players on 1.19.4
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Author's response
it takes a day or two for me to update PacketEvents to support new versions when there's an update that changes protocol - update as it should now work.

Version: 2.3.36
This is one of the best free anticheats on the market sale! The configurations are made very well and everything is just, perfect. I really hope it will remain free because amazing plugins such like this can't be found everywhere :)

Version: 2.3.35
I thought that because it is open source, it would be able to be bypassed. I was completely wrong. This is the best anticheat out there, and many paid clients are unable to bypass it well. I've noticed that closet cheaters can have an insane amount of reach, and it doesn't do anything about it. I also recommend that you add a built in autoban/autokick in the config that you can enable/disable. Warning to people who are going to use this, there is a new hacked client called "Rise 6.0" that claims to bypass grim anticheat. I'm unsure if these extreme claims are true, but if they are true, you might want to make sure that you always have the latest version of grim.

Version: 2.3.35
The best anticheat out there, i use this in combination with Vulcan and i cant find a flag missing even using Vape and other paid client.
Is there a way to use this on bungeecord so i can see flags even if im not on the specific server?

Version: 2.3.35
do i need to install prtocollib?
anyways great anti cheat certainly the best free anti cheat thx!
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Author's response
no, protocollib isn't needed

Version: 2.3.35
One of the best and my favourite feature is the fact, that I can check every player's client by using /grim profile! :)

Version: 2.3.35
sorry for giving 1 star, can you tell me where to at least fix this in the code, tell me more specifically, I just didn’t find the name simulation in the code and tell me where to fix elytra fly I will fix the bug myself

Version: 2.3.35
First I rated this a 1 star, but this is actually a pretty good anticheat. Elytra fly worked for me, but most of the hacks it detected and throttled me. Excellent anticheat.

Version: 2.3.35
Best Ant-Cheat ever made to block movimet hacks! For all of you that thinks this Anti-Cheat have a lot of falses. For my experience I say that it isn't what you are expecting. It have almost no issues when a player is not doing something weird. The only that i've found (playing normally) is when you fall right before pressing shift (1.8). Best option for large and small servers that want to block (not banning) hackers! Amazing work!

Version: 2.3.35
I put punctuation marks, it's just a bad translator, secondly, I would really like to go with you to discord so that I can write everything to you there that I want to fix, thirdly, I have one version of the server 1.16.5 purpur, I didn’t configure anything, just for some reason if I start the server on 1.12.2, then for some reason everything works stably, even when I didn’t configure anything, and when I switch to version 1.16.5, everything works badly for me, a lot of things I can bypass cheats, but the default settings are on, I also don’t set up grim, I’m ready to pay you through the crypto currency, but you can somehow contact you through some social network so that I can tell the bugs, and I’m a Russian-speaking person, I can only explain if I record a video and show

Version: 2.3.35
Great plugin! It actually works perfectly. I tried hacking the server with several hacked clients, but this plugin prevented me! Why would I buy a premium plugin if I can use this one?
I recommend downloading!

Version: 2.3.35
hello, help me with the settings in the blocks, I have cheats, when I go into the block and try to turn on noclip, it gets warm, and when I break under me, there is a block above my head, and where there is no leg, and when I turn on noclip again, it heats me up very weakly, but I can still walk through the blocks, I understand that the function in the config is Simulation - setback-decay-multiplier: 0.999 is my default, and when I do not 0.999 but 0.1, it doesn’t tap at all , please help with the setting, how to make it warm back in the blocks, as I said, there is a block above the head, and where there is no leg, make it warm even when there are no blocks under the feet, but there are above the head, tell me how to do this?

Version: 2.3.35
It's working good so far but the reason behind leaving 3 stars is mostly related to no support from a developer at all and also the developer requesting money to support it, even if Grim is working okay for now I have random errors in the console which I tried to debug but no success.

Version: 2.3.35
excellent, but PLEASE add a feature to temporarily disable the plugin, or exempt certain players

Version: 2.3.35
What a good anticheat !!

Is there a way to remove the anticheat for some players (admins for exemple(humm i'm not gona cheat on my server noooo))?

Version: 2.3.35
Wow. Just wow. What can I say? It's amazing. Really well done! There are still some little false positives but they only occur if you try really hard to false something. I am hyped for Grim 3.0! Thank you for open-sourcing such a great anti cheat. :)

Version: 2.3.35
I know it's not the place, but with the default settings and even activating the experimental part. IT PREVENTS THE GREAT MOST OF HACKING MOVEMENTS. The Kill Aura thing is unheard of, my hackers are not going to be able to believe this.

PS: Ghosh hand is fully functional, I thought it would pretend that he couldn't open the chest behind the wall but clearly he does the same. I think that in addition to the simulator it should have some basic modules to polish the parts that it cannot contrast.

Great system, kudos to the creator and I'm going to use it exclusively in 1.19.3 for now. I will surely update and take this Anti-Cheat with me whenever I can.

THE TRUE END OF THE HACKERS BEGIN.
HERE COMES GRIM, THE TERROR OF THE RATS.

Version: 2.3.35
Good anti cheat! It blocked all movement and 90% combat modules! I like you Define!

Version: 2.3.35
It works but for some reason I can't see the alerts if they are even on. I tied replacing [alert] by bc test and it was sended and github issues are closed and there's no discord support server

Version: 2.3.35
The Chinese version will have strange garbled characters, such as the Chinese font displayed in the help
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Author's response
Add -Dfile.encoding=UTF-8 to the startup bat if you are using 1.8 on windows.

Version: 2.3.35
Better than probably 99% of the public anticheats. False flags are the only major issue with grim(and probably the only one I complain about), however I think they'll be fixed on a recode.

Version: 2.3.35
I am giving this rating because, this is actually better than the most paid anticheats lol

Version: 2.3.35
Are you a Russian speaking person? can I somehow contact you to complete the anti-cheat grim for money
-
Author's response
You can use Spigot direct messages. I don't speak Russian.

Version: 2.3.35
I don't want to be that rude guy, but no. I'm not giving this rating because the anticheat is bad, but because it is unmaintained. Bridging, yes just sprint bridging, false flags you. Without constant bug fixes, Grim won't last long. Have a great day.
-
Author's response
This project is considered feature complete for the 2.0 (open-source) branch of this project. If you would like a bugfix or enhancement and cannot sponsor the work, pull requests are welcome. If you would like to a big fix or a feature request, contact me for estimates through spigot direct messages. I no longer offer free support.

Version: 2.3.35
-
Author's response
I can't exempt Vivecraft because then all cheaters will need to do to disable grim is to send one plugin message to fake being a Vivecraft player.

Version: 2.3.34
Really the best Anti Cheat I've tried, it works perfectly and the best thing is free!

Version: 2.3.33
GitHub issues are closed, once again. Define probably isn't going to maintain 2.0 anymore.

Version: 2.3.32
The plugin on the Test Server run great. But it sayd to me i need Protocol Lib 5.0.0 or newer. Where i can find that version??

Version: 2.3.32
This anti-cheat is nice though but I installed viaversion in version 1.8.9 server using 1.18.2 to enter the server but lag lag detection BadPacket N Timer

Version: 2.3.32
I hate this plugin D,: (continue reading!!!)!
I paid so much for SOO MANY anticheats and than this open-source anticheat is just the best one in its category. I love/hate the create!
Thanks for makeing it opensource :( .

Version: 2.3.31
Better than all paid anticheats from spigotmc. Thanks for developing it...........

Version: 2.3.31
One of the best anticheats i've seen so far.
I think especially movement cheats are its strength until what I tested for now.

Version: 2.3.31
It's amazing for a free AC and looks extremely promising, but still a work in progress. However, the developer really has to stay in the discord and actively work on it...

Version: 2.3.31
Causes issues where players are kicked and completely unable to rejoin. They don't offer any way to actually report this.
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Author's response
Github Issues were open at the time you posted the review. Probably PacketEvents related.

Version: 2.3.31
Since I've been using Grim Anticheat, I must say that it's a truly remarkable anticheat.
It is dependable, effective, and regularly updated to counter the most recent threats.
Define, the owner is constantly working to improve the product and is always quick to address any issues or concerns.

But recently, Define, the owner; left the community again because of some negative interactions.

I hope Define will consider coming back to the community and continue improving Grim Anticheat.

Version: 2.3.31
GitHub Issues and all Discord support has been pulled again - there is no way of reporting any issues you have. This comes after 2 different flys were found that bypass Grim in its current state.

Version: 2.3.30
There's some falses, but it still deserves 5 stars - especially now it's back in active development. Right now the most annoying issue is negative timer and fastbreak falses, but otherwise it's a great anticheat.

Version: 2.3.29 hotfix 1
This will be my final* recommendation that you use the best anti-cheat on the platform.

Version: 2.3.29 hotfix 1
And this will be the final, final, final, final final... final, final...

final injector fix :P

Version: 2.3.24
I was using a similar approach with my own anticheat on 1.8.8. (Predicting/calculating movement server side)

Glad I don't have to update and adapt everything to 1.19.2 because Grim does an amazing job detecting even small deviances in player behavior at basically zero performance cost

Version: 2.3.24
It is so good, realy and for free. The best free anti-cheat,
To jest na prawdę dobre, i za darmo. Najlpeszy darmowy antycheat

Version: 2.3.24
Still not ideal, but I am very glad to see that GitHub issues have been opened up again! It's a step in the right direction - thank you Define for listening for once.

Version: 2.3.24
best anticheat for movement and most combat checks. sure it has some issues but they’re very small plus the anticheat is free
falses get fixed very quickly, and bypasses are rare when exemptions are abused, and, too, get patched quickly
Great plugin!

Good job defineoutside

Version: 2.3.24
Define worked his ass off. He has been working on this anticheat since back 2021 May. His github is full with commits for a straight year, he MUST have spend houndres of hours developing this masterpiece. Not to mention the 600 issues he fixed which are surely bout 1000 hour of work.
Even tho some people know that there has been much more work on this plugin than we actually know, we can't imagine how much it really was/is.
It is completly understandable if you decide to not maintain or too slow down maintaining this project.
We are still thankfull for still giving explanations on github issues. They help us so much to figure out where to work on.

greetings.

Version: 2.3.24
Wonderful anti-cheat, but when I put it down after using the shield, it actually says I used noslow

Version: 2.3.24
this AC is good, blocks vclip and etc, but how do I avoid false-flagging of 'Sprint' / 'Toggle Sprint' ?

Version: 2.3.24
With the positive feedback from users, I hope it will bring out the best in my Server! Thanks to the person who created this Plugin!

Version: 2.3.24
Don't listen to Spiriten!

We tested over thousends AntiCheats! Grim is the best AntiCheat on the Market right now.

It Blocks Reach and Movement Hacks perfect and has only few rare false positives that you dont need to be worry about.

Version: 2.3.24
Best ac on the market, period. Don't waste your money on other paid anticheats.

Out of the countless anticheats I've tried over the years Grim is by far the most effective... not to mention it's free, open soruce, and comes entirely pre configured.

Ignore people complaining the main dev is distancing themself, the project is still actively maintained by contributors.

Been using the plugin in production basically since it came out and we've never had any major issues and performance is great. 10/10 resource

Version: 2.3.24
Everything works perfectly fine but I cannot paste blocks. It kicks me from the server by saying this:

https://prnt.sc/iNM58UHEUXex
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Author's response
That's not a helpful error, a helpful error is in console

Version: 2.3.24
Major issues still persist.

I'd also like to address Define's response to my previous review.

1. You're releasing a program to a public platform... if you'd like to hide from criticism I'd recommend to not do that. Yes, I'm currently a free user, but I'd like to note that there is literally no way to become a premium user - so is it valid for you to only accept criticism from a group who cannot exist?

2. If I'm looking at our Discord DMs correctly you have the full ability to gain console access back again. I did revoke your console access to the test server - but only when you banned me (as well as others) from the Discord server. As stated in DMs, while this did happen the offer stands for you to regain console access... all you have to do is communicate with people.

3. Never once had I attempted to coerce you into fixing Grim. As GPLv3 states, programs are provided as is - no corrections required. My review just stands as warning to potential users that the project is unfinished, plagued with issues, and a CPU + RAM eater.

Holding toxicity towards your userbase is not the way to handle a project. If you want to build a project and community which will last, I'd recommend to listen to criticism rather than banning/blocking/removing those who give it.
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Author's response
1. I accept criticism from servers that I work with. You don't have a server so I don't work with you. I don't accept criticism from the general public. Most bug reports are terribly written and I can spend hours just trying to reproduce some issues so I'd rather just work with other technical people who can provide good steps to reproduce stuff. Thousands of hours were spent fixing reports from the general public and most issues were fixed. 600 issues closed, 89 open. Not including all the reports reported improperly from DM's or issues reported by the servers I work with. The amount of time to fix those 600 issues as a singular developer without funding were insane, and to ask me to change the vision of grim based on what others want is even more insane.

There's a lot more to fixing those issues than what appears at the surface, they cut deep into the original design and assumptions. To ask to fix those issues would result in a different anticheat, one that didn't prioritize detecting cheats in a single tick over false positives in edge cases. I would rather mitigate in a single tick than have false positives. Issues unfixed are mostly out of scope of Grim 2.0.

2. You were banned from Discord for pinging AoElite, I had nothing to do with that.

3. The project is finished, it does exactly what I intended to create. It prevents movement and reach cheats entirely. Other cheats aren't a big deal to me as a survival PvE server. False positives aren't really a big deal to me as long as they are rare, which in my experience they are rare. I just want to prevent cheating with a plugin that is open source, as an anticheat was the last proprietary (and illegal) plugin that I was using.

I'm unsure where you are getting CPU and RAM eater from. The CPU usage is comparable to other anticheats, and the usage is not on the main thread and can scale infinitely with threads. Grim can run thousands of players on a single server given enough threads and memory. This is not something I see with the servers I work with.

So please, fuck off. You don't use grim in production, so why are you reviewing grim. You are just driving me to never release anything to the general public again.

Version: 2.3.24
Dear DefineOutside, thank you for the work you do to improve this anticheat more and more.
I've tried many but this one does its job despite being free.
If you need a hand to better configure your Discord server, I'm at your disposal: Er11deSettembre#4484

Version: 2.3.24
Best anticheat ever .

Version: 2.3.24
It's amazing to see the AC being developed again, hope the anticheat grow as it has a lot of potential and checks that other , even premium anticheat don't even have

Version: 2.3.24
The best free anticheat so far! This is the only anticheat that still feel playing like vanilla minecraft but can block blatant cheats like fly and speed. Hopefully we will see more updates soon. This is a gem.

Version: 2.3.24
Great Job!
:)

Version: 2.3.23
Perfect! Thank you for giving it for free. I would honestly pay for this plugin.

Version: 2.3.23
This anticheat has potential to end the cheating problem for good.
Honestly I'd pay $50 for this if it was actively maintained.

Version: 2.3.23
Absolutely amazing anticheat. Hopefully the paid projects comes to life with Bedrock support. I'd be down paying 10$ a month for an advanced version of this anticheat!

Version: 2.3.23
While the anti-cheat itself is very effective, there is quite a 'grim' future for its development. On July 30, the plugin's owner made an announcement on the Discord stating, "I am no longer interesting in creating", and has completely disabled all avenues for reporting bugs (Github issues and Discord).

The plugin seems to be in a state of limbo now, with the main developer having effectively quit, and I'm not too hopeful on any major future developments. This is really disappointing to see in such a nice project. Oh well.

The plugin DOES continue to work, but I wouldn't count on it lasting through the next major MC version release unless someone else steps up and takes control of the project.
-
Author's response
I'm likely to update it to 1.20 since it only takes a few hours.

Version: 2.3.23
Errors in console: https://pastebin.com/v4GCKRZX
..........................................
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Author's response
That's not a bug with grim, that's a bug one of our dependencies, PacketEvents.

People like you who put 1-stars onto thousands of hours of work, released, for free and with the most permission license that is allowed with bukkit, are the reason why I'm done with releasing my plugins for free.

Recompiling might fix it, not sure if the current latest update included the change about shading Gson.

Version: 2.3.23
Probably the best free anticheat out there, definitely recommended! Its performance is also really good, 0.01% on timings.

Version: 2.3.23
Great idea, unfortunately was left a victim to terrible community management.
- The bad management of the community led to the shut down of the Discord server (the only channels that exist are Announcements, Beta Jars, and Welcome) and the removal of the Issues page of GitHub.
- The only active contributor commonly power trips, tearing the community further apart.
- DefineOutside, the owner of the project, has not made any meaningful commits to the project in a month despite the project being plagued with many issues.

I do wish the best, it's rather sad to see Grim like this.
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Author's response
have you considered that people like you are also the problem?

I don't even have access to the test server now that you kicked me off it.

You are expecting too much. I've given the community the plugin, with the most permissive license possible. No one is entitled to support or for me to fix or even read their issue after around three months of where all reported bugs were fixed. All that's left are very complicated and nearly impossible tasks that simply can't be completed in 2.X.

YOU ARE NOT ENTITLED TO BUG FIXES, YOU DID NOT PAY FOR GRIM.

"THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION."
- GPL 3.0 license

Version: 2.3.23
In my opinion, it's the best free anti-cheat. It could even compete with some paid anti-cheats.

Version: 2.3.23
Can you make him support Chinese, the Chinese will be garbled, or tell me what encoding to use!

Version: 2.3.23
halal anticit حلال
best antichit for ma pivipi server. had vulkan before, it was like jet fights everyone was flying. instaled this one - all h4x0rzz rekt. flags 3.00000000000001 reach and 1.000000000001x speed wit absolutly no false positivs. water do be flowing tho.

Version: 2.3.23
Great anticheat but on 1.17.1 spigot for some reason in that version anyone that joins the server can’t move at all in game

Version: 2.3.23
Prediction is accurate but it got a lot of false positives
Reach check is inaccurate

Version: 2.3.23
Great anti cheat plugin, until now I hadn't tested it to see if it really worked. I just did it and it is much more efficient than the one I used before. Great plugin thank you very much.

Version: 2.3.23
This is an excellent Anti-cheat that I can recommend and my request is,
Please change this to only protocollib 4.x version cause Protocollib 5.x rapidly sends BIG DIRTY MESSAGES and also I have problems with item frames in my server. installed custom images plugin on my server and suddenly some item frames disappear when I use protocollib 5.x So please fix it tbh this Anti-cheat is way too best Anti-cheat

Version: 2.3.23
but it sends some times false when viva version players join with ping greater that 300

Version: 2.3.21 recompilation 1
Great anticheat even ! It not easy to find a good Anticheat still uptodate now. And the most important that I love from this anticheat plugin is complain with geyser players from bedrock.

Version: 2.3.21 recompilation 1
Good AC(best)
Good AC(best)
Good AC(best)
Good AC(best)
Good AC(best)
Good AC(best)

Version: 2.3.21 recompilation 1
Very, very good anti-cheat! I recommend it to everyone and use it myself, thanks to the coder's mom for being born such a genius! Just a fantastic anti-cheat!

Version: 2.3.17 hotfix 2
It has a lot of features, but I couldn't find any packet-events compatible with GrimAC.
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Author's response
you don't need to install packetevents for grim. You also didn't provide any errors, just a screenshot showing grim and packetevents being red, which isn't helpful.

user submitted issue: https://github.com/MWHunter/Grim/issues/709

Version: 2.3.17 hotfix 2
By far the best anticheat solution on SpigotMC.
It outperforms every competitor with its accurate detections.

Version: 2.3.17 hotfix 2
Has helped out my server a ton! Love the work that's been done here, it is an amazing product.

Version: 2.3.17 hotfix 2
Wow. Only half used it yet, no bugs, Detects cheaters nicely, and It is extremely useful that I can view the player's Client. 1 Question though - I noticed the "discord.yml" file, enabled it, and made a webhook for it. I entered the link, and I'm not sure what it does. Would be useful in the info!

Version: 2.3.17 hotfix 2
很不错,但希望在我在Github上提交的Scaffold绕过,让反作弊做出一点改变
Very good, but I hope to bypass the scaffold I submitted on GitHub and make a little change in anti cheating

Version: 2.3.17 hotfix 2
The only PROPER anticheat. Other anticheats try to «guess» illegal actions therefore have tons of false positives because of how complex player input in Minecraft can be. Grim Anticheat, unlike others, uses server-side simulation of client movement, does almost everything asynchronously and actually built with reference to the Minecraft movement code. Grim isn't guessing, it knows possible outcomes of player action at any point of time. This is still in development so bugs are expected but it already outclasses other solutions. It is even open-source so you don't run some obfuscated jars without knowing what is inside. This is very ambitious project and amount of work done is impressive. Wish you success. ★★★★★

Version: 2.3.17 hotfix 2
The review below me is absolutely embarrassing. Aside, I'll reiterate that this AntiCheat is purely amazing, factoring in it is *this* good in an experimental state. People don't seem to understand this gift to the community and act all entitled :)

Version: 2.3.16 hotfix 3
On github 68 issue and they have been for a very long time. Anti-cheat is good by the way
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Author's response
Issues aren't really a good indicator of problems. They are a combination of a TODO list, feature requests, and bug reports. Only 58 of those issues are bugs reports, with some of those 58 being duplicates. Plus issue trackers tend to grow over time as bugs that aren't worth fixing get reported. WONTFIX bugs are not closed as they sometimes can be fixed when refactoring. Some of those bugs are my own reports on specific edge cases that would have otherwise gone unreported.

CMI currently has 298 open issues with the oldest bug report being from Feb 23, 2019 for context of what other issue trackers look like.

Grim currently has 67 open issues with the oldest bug report (not feature request) being from April 10, 2022. All bugs reported before 3.5 months ago being fixed by now is good for being in beta. Hopefully I can complete the backlog eventually as it has been growing, but is finally starting to shrink once again. If you really want a bug fixed, you can pay a developer to PR a fix as grim is open source. Plus, opening bugs is encouraged by the grim logs command, letting any prediction flag be debugged and fixed.

Somewhat unfair to review an otherwise good anticheat by the number of open github issues.

Version: 2.3.16 hotfix 3
Good anti cheat but please fix the false about water
-----------------------------------------------------------------------

Version: 2.3.16 hotfix 3
This anticheat is good but, there is simulation false flag if you use Auto-sprint module in Lunar-client you will get banned, please fix this
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Author's response
There is no open issue about this. The reviews section is not an issue tracker.

Version: 2.3.14
Лучший античит так ещё и бесплатный. Советую всем. Он вообще просто не даёт читеру что то сделать.

Version: 2.3.14
Very good anticheat. Could for sure see this being worth money if the dev keeps it up.

Version: 2.3.12
Everything works amazing... except elytra's, is this intended or is this a user issue?
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Author's response
user issue

Version: 2.3.12
The best anticheat on spigot currently.


Tho I have a small complaint:
- I dm'd you on discord with a massive flaw and you just straight up blocked me without any messages. No this is not one of those I spammed the discord with nsfw or was being toxic yada yada I just showed you it, said "funy" (not very toxic) and then got blocked. Other then that amazing dev <3

Use grim.

Version: 2.3.10
Unexpectedly good, thanks for the free anticheat, i really like it. The test server works really good.

Version: 2.3.10
The best anticheat!!!!
-------------------------------------------------------------

Version: 2.3.10
on my server i still not found any cheater for give info about detections, but i can set 5 stars only bcs Its not has false positive at all time what me using it

Version: 2.3.9
Great anti-cheat, especially considering it's free and supports basically all spigots (1.8-1.19), all client versions, a lot of different client mods and server plugins. And the version support is unlike other anticheats I've tested where the anticheat just runs on the advertised versions, Grim's version support also ensures that there are very few false positives and the detections stay strong.

When it initially came out it had some flaws but even then the reach detection speed was well above any other anti-cheat available on the market [1] (Not sure about sparky, never tested it) and false positive wise it used to be only slightly worse than anticheats like Karhu, Kauri Verus and Medusa [2], where most of these anticheats came with a buffer by default and grim didn't back then.

I tested it recently and it seems to have improved since the last time I tested (Version 0.0.1), now I could not get the reach check to false flag even at 0 buffer and by doing some not very well known bugs and only falsed the simulation check a couple of times.

Sure Grim doesn't have ghost detections but movement and reach wise I don't think you can get a better anticheat than grim right now (no matter the price), although I have not been keeping up with all the newest anticheats after about september 2021.

PS: I might be biased as I have helped and been helped by the developer of grim a tiny bit, but I tried to stay neutral.

[1] https://cdn.discordapp.com/attachments/841062335682445322/887916049054461992/703e7280ca9a0643125357e7d769b3f3.png
[2] https://gyazo.com/c70f8066a39b096e8138c898ecefe0f3
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Author's response
thanks for the cool graphs

Version: 2.3.9
very good anticheat blocks all modules :D and free

please fix a few minor false flags and the anticheat will be insanely good

Version: 2.3.9
outclasses any other anticheat. definitely worth it, and it does deliver on the promise of super precise flags

Version: 2.3.9
Without a doubt the best anti-cheat I've ever seen, your work is excellent, I think it deserves a 5 star, hope you keep updating

Version: 2.3.9
This is a wonderful plugin . Can I take it to the Minecraft forum in China ww.mcbbs.net. Can you agree?

Version: 2.3.9
dude, this is just insane. I have never seen such an accurate anticheat. thanks to the dev, I will definitely buy it on the release

Version: 2.3.8
I'm amazed at how accurately it works, good anticheat, didn't check for false positives

Version: 2.3.8
i cant install it it keeps saying cant find page or something can some one help me
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Author's response
I have fixed this issue and you should be able to download it now

Version: 2.3.8
This is the best AntiCheat i ever have seen so far and i tried a lot.This anti cheat blocks really likle every cheat of this "free" hack client which so much small kiddos use to be like cool xD

I u want try the AntiCheat our u can test on SurvivalHD.de

Version: 2.3.8
1 Star for nothing, I don't uderstand these guys, anyway, good anticheat! :3

Version: 2.3.7
Too many false flags for it to be usable, easier to stick with updated nocheatplus.
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Author's response
1 stars seems a bit harsh considering that the anticheat is free and detects literally every movement cheat that people have thrown at it, with nearly 0 impact on the main server thread. 3 stars would seem somewhat fair, but 1 star for thousands of hours of work just isn't. Especially since you lost nothing by using grim, it is a free plugin both in freedom and price.

Anyways, I'd suggest just raising the threshold to 0.001 instead of the default 0.0001. Whenever a new update gets released, this new default should fix most of these false issues.

Haven't seen these major issues on servers I'd work with so I'd suggest joining the discord to receive better troubleshooting. Might be a conflict with another plugin. Can't really fix issues when the review simply says "too many false flags"

Version: 2.3.7
The false posive is patched.Thank you for your effort!
<3333333333333333333333333333333

Version: 2.3.6
Good anticheat, has pretty solid checks and it's tottaly free! :3

Version: 2.3.6
GrimAC is literally the best anticheat I've ever used.

- Movement checks are pretty much impossible to bypass.
- Combat checks are extremely solid.
- Focus on lastest Minecraft version

And it's still in beta. If it's already this great, I can't wait for the full release.

Version: 2.3.6
GrimAC is literally the best anticheat I've ever used.

- Movement checks are pretty much impossible to bypass.
- Combat checks are extremely solid.
- Plugin is open-source.

And it's still in beta. If it's already this great, I can't wait for the full release.

Version: 2.3.5
What the...
I can't believe my eyes.I've enabled velocity and get knocked by a zombile.I flew off just as if I had enabled nothing.Well done,well done.I would give 100 stars if I can.
It's the best ac I've ever seen and I've ever imagined.

Version: 2.3.4
This is an awesome anticheat with one major caveat - the documentation is nonexistent. Neither the commands nor the required permissions are mentioned anywhere. I had to look into the plugin.yml to find out the basic permissions. This doesn't make the plugin any worse though, so it's still 5/5 stars!

Version: 2.3.1 hotfix 2
GrimAC is literally the best anticheat I've ever used.

- Movement checks are pretty much impossible to bypass.
- Combat checks are extremely solid.
- Plugin is open-source.

And it's still in beta. If it's already this great, I can't wait for the full release.

Version: 2.3.0
Good anti-cheat with its movement simulation engine! 10 postponed AutoClicker checks out of 10.

Version: 2.3.0
I literally can't bypass the movement simulation. I don't think it's possible. It detects things like fish (no slowly falling in water) and all the avoidance hacks which most anticheats struggle with. And it's fast. Some kind of magic going on here.

Version: 2.2.14
It was pretty good, though there are a few exploits that can crash the server as I accidentally did, I was using fastplace with crystals and had crystal aura on, and it crashed the server. This was on the test server, sorry about it.
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Author's response
Thanks for reporting, the deadlock is now fixed before it made it to spigot releases.

Version: 2.2.13 hotfix 1
This anticheat is probably one of the best in terms of pvp on 1.18.2 i did some testing and it was near perfect. the setbacks are really amazing! i didnt had any false positives as well which makes it so much better. recommend it to anyone!

Version: 2.2.12
Very solid anticheat with great performance. Developer knows more about minecraft's netcode than mojang.

Version: 2.2.12
Best (public) movement anticheat, period. Setbacks are one of the best, you barely need to kick/ban at all.

It's reach detection also best in class, barely any anticheat detects as low as 3.01 (1.8 server).

Keep it going Define!

Version: 2.2.12
legit the best anticheat ive ever used or even seen.

we tested this on our server with endy (ace) and managed to detect everything with 0 false flags

Version: 2.2.12
By-far the best anti cheat I have ever used for any version of minecraft. Its reach check is unbelievably good.

Version: 2.2.12
well done!
everything was ok
i really liked your anti cheat bc its free and it has very good checks
Pros:
1-performance
2-insane reach checks! (Yes Its Can Detect 3.06 Reach)
3-Movement checks
4-Good Features (like /player info)
5-FREE!
6-Open Source
7-Very Nice Timer Checks
Cons:
1-falses (sometimes)
2-Config.yml Was really simple
3-Incompatibilities

But I really Liked Your Anti Cheat :D GL
-
Author's response
Thanks for the review

Version: 2.2.10
I used it in my loaclhost server it woks very good, but can u make it not via an extral link because i want to use it in aternos
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Author's response
I can't. The resource is 5.3 MB and spigot has a 4.5 MB limit

Version: 2.2.9
In my opinion the best anticheat out there right now.
And it still has so much potential.
huge vouch

Version: 2.2.9
Well done.
I never rate plugins, but this plugin in beta outperforms about every free client in checks (technically not checks per se), performance, even better than some paid ones, has an active developer, a great license, and is the beginning to a new era of Anticheats.
Pros:
Logic is outstanding
Performance hit is minimal
Almost no config required
Players on my server notice no lag
Cons:
Not paid, so you don't get the satisfaction of buying it
The developer isn't Notch
The sky isn't (or is it?) purple

Version: 2.2.9
I really liked your anti-cheat. Very cool for a free version. I would like to see FastPlace bypass here.

Version: 2.2.9
Stunningly good, highly recommend. Have had absolutely no issues with false positives and seems to catch everything thrown at it. Well done.

Version: 2.2.9
One of the best anticheats to ever exist, "unbypassable". Thanks for this amazing plugin!

Version: 2.2.8
is it works for 1.16.5?....................................................................
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Author's response
It should.

Version: 2.2.5 hotfix 1
One of the best new anticheats. Detects pretty much everything. Only issue is that it does not take server TPS or player ping. I keep getting alerts for players with 700-1500 ping.
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Author's response
Open an issue on github with the specific check failing. Grim lag compensates placed blocks, buckets, entity positions (to 3.01 reach at any ping with 1.8 clients on 1.8 servers), clientbound block packets, clientbound chunk packets, clientbound metadata packets, clientbound potion effects, clientbond inventory, and checks such as timer get tested with clumsy and 5 fps. As long as all these systems are functioning like they are designed, there is no need to manually exempt high ping players.

There is also no need to exempt on TPS. Grim works at the network level and in the past, I've showcased it's ability to run 30 seconds behind real time while checking the player's movement without issues.

Most likely I accidentally broke one of these systems and I will fix the issue with one of these systems if you report it. It's currently in beta so issues like this do happen from time to time.

Or it has nothing to do with ping or tps and is just general instability.

In any case, report the issue on github and not the spigot review section.

Version: 2.2.5
The best movement Anticheat on the market! I can recommend this Anticheat to everyone

Version: 2.2.3 hotfix 1
Just amazing, no other way to put it. This anticheat is gonna rise above the others for sure.

Version: 2.2.1 hotfix 1
Dude, this plugin is a very good anti heat plugin, I couldn't even move when I entered it with the wurst client, but where does it say the cheats that the plugin blocks?

For example: killaura,nuker and so on

★★★★★

Version: 2.2.1 hotfix 1
It can recognize almost any cheat and makes cheating really annoying!
Great job!

Version: 2.2.1 hotfix 1
It's the best of all anti-cheats, even though it's in beta.
This is going to be the best anti-cheat in minecraft

Version: 2.1.2
Thats what I call beyond perfect. Will be the best anticheat to ever exist, still really good even in beta.

Version: 2.0.20
No testing was done on false positives. But of all the cheats I've tested, this anti-cheat plugin is the best.
I've only tested it on the official test server. It was able to check for about 3.1 reach, HitBox checked very quickly, and as soon as I turned on cheats on the perimeter and hit a creature, the anti-cheat would immediately check for it and alert me.
I'm now going to use this anti-cheat for my 1.18.1 SMP. I've purchased some paid anti-cheats before, and they weren't even as powerful as this one in BETA.
I will pay for future paid versions (if I can).
(By the way, is the license real?)
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Author's response
Yes, you have full right to the sources on github and can do practically anything with the source except deny other's rights to do the same.

The technical reason for 3.1 reach is that reach is harder on 1.9+ and the test server doesn't send extra packets to help, that option is disabled in the config to best represent production servers. It will eventually catch very low reaches though as the reach check runs bufferless and by chance, the lag compensation sometimes won't give extra reach in the direction that gives an advantage. On 1.8 clients it's much more accurate. I also left 0.03125 hitbox expansion in 1.18.2+ clients as I forgot to remove it now that a stupid mojang mechanic is gone in 1.18.2.

Version: 2.0.19
This is nice!
And since it's minecrafts entire source code for movement, it's impossible to bypass without finding flaws in the anticheat base.

Version: 2.0.17
I agree with ElectricAirplane. Prediction based anticheat go brrrrrrrrrrr!!!

But seriously this is a good anticheat

Version: 2.0.16
Already a game changer. When this gets some combat checks I think it can easily become the best public anticheat.

Version: 2.0.16
This is finally out! Very excited to see where it goes. Prediction based anticheat go brrr

Version: 2.0.13
Godlike anticheat, blocks every hack I've tested on it, operates on the packet layer and causes no issues with the 48 other plugins on my server, a good few of which modify movement and implement custom mechanics. Would've happily paid 25$ for this beta, and it's F R E E

Version: 2.0.13
-------------------------------------------
Amazing movement checks
-------------------------------------------
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Author's response
They aren't checks, the game's entire movement system is in the anticheat :)

Version: 2.0.10
great developer, they know what they are doing, this anticheat is definitely going to be a game changer to the entire cheating community

Version: 2.0.9
I love this anti-cheat already!
The way the anti-cheat works by whitelisting what's good instead of blacklisting all bad things (normal ACs)

I'm amazed at how well it works so far, and it's only in BETA!
Definitely recommended to keep an eye on this project, and keep testing until it's out of BETA.

Version: 2.0.6 hotfix
-------------------------------------------
BEST OPEN SRC ANTI CHEAT
-------------------------------------------

Version: 2.0.4
This is the best plugin I have ever seen. It is really saaaas because of sooooos.

Version: 2.0.4
License:
- no decompiling or i will have to sue u!!!!!!11!!!!!

GUD ANTICHECK DETECTION, RANSOMWARE CANT PLAY MY SERVER ANYMORE LLLLLLL

Version: 2.0.3
Good anticheat made by a sexy guy, will use this in production with automatic bans!

Version: 2.0.3
I'm excited about Grim AntiCheat in particular because:

- it is open-source - few premium plugin developers are kind enough to go this route

- built upon the latest versions of the game, instead of focusing on ancient ones

- some great features with its design, mainly the use of packet detection and the avoidance of doing too much on the main thread.

I'm yet to use it as I don't have a server for it, but this is one of the most promising anti-cheat plugins I've seen surface.
All the best to the developer(s) of this project!

Version: 2.0.3
Good Job! Ultra precision. The Dev respond fast and also fixes bugs fast. In the config you can set the detections as you like, but the default values are perfect. It also uses packetevents, the modern and faster packet api.

Version: 2.0.3
Works very well, minimal falses. I'd definitely try it out, if you have any issues the developer usually handles them very quickly through the discord.

Resource Information
Author:
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Total Downloads: 287,168
First Release: Feb 11, 2022
Last Update: Dec 17, 2024
Category: ---------------
All-Time Rating:
259 ratings
Find more info at github.com...
Version -----
Released: --------------------
Downloads: ------
Version Rating:
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-- ratings