Speed: The spinning speed of the slot machine, provide a value from 1-5
Reels: the number of reels aka wheels your slot machine has, provide a value from 3-7
Symbols: These are the symbols displayed on your reels, you may have any amount of symbols. In this list they should be in order from rare to common.
Symbol color codes: The minecraft color codes for the symbols, these are optional but if you have them, they need to match the length of symbols.
Symbol multipliers: These are the winning multipliers for each symbol.
Symbol Weights: this is the weight of each symbol AKA how frequently they are picked by the RNG (Random number generator). Common symbols should have more weight and rare symbols should have little weight. Need to be equal in length of the symbols.
Cost: the cost AKA bet for each spin.
Win multipliers: This is how much the bet is multiplied by the given combo of matching symbols. Available combos are seven, six, five, four, three and two. If your slot only has 3 reels then the only combos you can get is three and two, for example - 7 7 7 - OR - 7 7 1 -
Sounds: the minecraft sounds played by the slot machine, options are spin, reel-lock, win, lose, cash-out

When you're done configuring a slot machine you can predict some stats by running "/playerslots simulate <type> <spins>" with the type being the slot machine and how many spins to run, should be around 100k depending on the CPU. You should then try to configure the slot machine so the RTP (Return to player) value is around 95%. If the RTP is above 100% it means the house is losing money and if the RTP is below 100% the house is winning money.

Run "/playerslots create <type>" with the type being one of the configured slot machines, then right click a sign. You need to have at least 3 times the maximum payout of that slot machine available in your account. Then creating the slot will cost 15 times the bet.

Every time someone plays your slot machine it will take a deposit from your account as an insurance if the player win. if they lose you will get the money deposited back including the bet.

If you can't pay the maximum payout of your slot machine it will go out of order AKA unplayable until you can afford it again.

You will get messages if someone played your slot machine and how much they won or lost.

In order to play a slot machine you right-click the sign once to see the bet. Then right-click it again to play. In order to win you need to match symbols on the middle line indicated by the two dashes. Shift + right-click the machine to see the paytable with available combos.