The Cthulhu Solo Adventure Generator is a solo role-playing game. Its intuitive system allows for an almost infinite number of solo role-playing adventures. Relentless cosmic horror simmers just below the surface of your player character’s everyday life. Can your player character survive exposure to mind-shattering eldritch evil? This Solo Adventure Generator is designed to work with campaigns set in the Roaring Twenties. But it can work in almost any Cthulhu setting and is d100 compatible.