Aug 28, 2016 · The rules for play and for character creation are present in the Keeper's Guide, and it appears to be meant to be a stand-alone book for a Keeper who is already familiar with the game, and its common setting of the 1920s. If a Keeper were shifting to this edition from an earlier one, the Keeper's Guide would be sufficient. New Keepers. Call of Cthulhu Keeper Rulebook - Hardcover. $54.95. Add to Cart. Quick View. Call of Cthulhu RPG Call of Cthulhu is a horror fiction role-playing game based on H. P. Lovecraft's story of the same name and the associated Cthulhu Mythos. The game, often abbreviated as. "/>Call of cthulhu keeper rulebook online