In the game, all players have one to four characters; players frequently compete against other players. The game is concerned with the old beliefs of magic and the new beliefs of reason.
Characters in the game have two Attributes (Body and Mind), with scores distributed from a point pool. Characters also have Traits (somewhat analogous to Skills), selected by spending points. Traits can be Broad, Narrow, or Specialist, respectively giving greater benefits in a narrower range of activities.