Principia Malefex The main rulebook
Principia Malefex - Best of Friends A light ruleset and three scenarios for players.
Principia Malefex: Fool's Paradise A set of six scenarios
Wolf's Head (Principia Malefex) A single scenario supplement for the game.
Family Ties (Principia Malefex) A single scenario supplement for the game.
Scholars and Criminals A Character Pack containing Several NPCs and scenario ideas.