LexOccultum: Roi-de-Rats

A campaign book set in 18th-century Paris that details the city’s underworld, secret societies and political intrigues. Players investigate the Cour des Miracles, pursue leads tied to a rumored royal offspring, and confront assassins, clandestine theater cults and remnants of ancien régime influence. Gameplay emphasizes investigation, roleplay and long-form plotting rather than straightforward combat; scenarios span city streets, Versailles, southern France and hidden temple chambers. The text provides lore, NPCs, locations and challenging mysteries meant to demand attention from both players and the game master.