Multiplayer Hardcore is a plugin designed for playing with friends, you can play normally in your world or try to make a speedrun of the game - if one person dies, the game ends and the server shuts down after a 10 seconds

in the game, when starting the plugin, you will be able to choose the minecraft difficulty mode and whether the plugin should automatically delete the world after a failed challenge

the server must be restarted manually

the difficulty mode change is only available when starting a challenge in the game

type /mhr help in game to see available commands