Simple Forum Mafia (S-FM):
13 players or less.
Must stick to the rules of a 'normal' Mafia game as much as possible (see the
Setup Requirements thread on the Setup Approvals forum).
The game must stick to a single game thread, and a single Role Cards/FAQ/Rules thread.
Mini Forum Mafia (M-FM):
20 players or less.
May have a thread for each day/night cycle, and a single Role Cards/FAQ/Rules thread.
Multiple custom roles and mechanics are allowed, but not many.
Limited approval process – dependant on how many games are running, approvals may be staggered.