I've never heard of this game, maybe a description or link to a wikipedia page[1] in the readme would be good.
The previous year, students had arranged a real-time version of the game, so that, each night, the mafia would vote and eventually someone would go knock on the victim's door. At some point, a maid found a piece of paper in someone's dorm, listing a "God", the names of people who had been "killed", who was to be killed that night, etc. The police were called.
The matter was eventually cleared up, but from then on, the camp imposed a strict policy of no "Mafia". People were free to play equivalent games, as long as the vocabulary of the game was not something that could conceivably lead to a repeat incident.
Hopefully the police is not alarmed by bits of paper with labels as "wolf" (mafia), "dog" (guardian angel), "shepherd" (detective) and "sheep" (civilian)...
having cards available as reminders of who's alive is very helpful