Other metaphors for the game of mafia

[Skygazer]

The moderator is a farmer and the players are corn. Some of the corn tastes bad, but the good tasting corn has a vested interest in keeping up their reputation. Every day, around dawn, the farmer listens closely to each stalk. The stalks tell the farmer which corn to discard. At night, the farmer sleepwalks. The bad tasting corn telepathically hijacks the farmer's dreams, forcing the farmer to inadvertently discard some perfectly good corn.