Call of Cthulhu is a tabletop roleplaying game based upon the ... You and your companions may very well decide the fate of the world. This book, the Keeper Rulebook, contains the core rules, ...

With that comes a new 40th Anniversary Edition of the Call of Cthulhu Keeper Rulebook. The new edition of the book offers a beautiful leatherette cover and dust jacket design in black, with red ...

But if you really want to get started with Call of Cthulhu, you’ll want to grab a few books. Two, specifically. Unlike other RPGs, you actually need both the player’s and GM’s books to play the game.