Call of Cthulhu is Chaosium Inc.’s roleplaying game of mystery and horror inspired by the fiction of H. P. Lovecraft, the originator of cosmic horror. In this game, ordinary people are confronted with the machinations of the Cthulhu Mythos. Set in the 1920s, the modern-day, or beyond, players portray investigators of the unknown—decent folk taking a stand against the terrors of the night despite the costs to their sanity and their lives. Only they can save humanity and the world from unthinkable horror.