The Legacy of Cthulhu is a Role-Playing Game that lets players act as one of the few Survivors of the apocalypse brought to Earth by the Great Old Ones and their minions.

The game's main goal is survival, hiding in Shelters and waiting for the best windows of opportunity to go on supply runs. Food, medicine, weapons, and gear are the essential tools to resist the dooming future ahead, filled with regular folk possessed by pure desperation and madness, scheming cultists, shadowy priests, and the most dangerous Enemies of all: the perverse spawns of Cthulhu and other Great Old Ones, powerful enough to shatter someone's mind just with their presence.