Realms of Cthulhu is a horror campaign setting book for the Savage Worlds rules system. Mythos Tales can be set in any period and any place. Included are guidelines to get you started with the most popular time eras: the gaslight era of the 1890s, the classic era of the 1920s, and the modern world of today.

Four distinct styles impact how physical damage and mental anguish are handled. Insight and advice are offered to the Keeper concerning magic, modifying monsters, and creating adventures, as well as a detailed roster of supporting cast members, and comprehensive bestiary. Also included are pre-made Mythos Tales and a Mythos Tale and Creature Generators to create whole new adventures.