Whether you're playing D&D, Call of Cthulhu, or something else entirely, there's always a little room for the great old ones ...

Chaosium’s classic investigative game of normal people going a bit mad in the face of unspeakable horrors is 40 this year. With that comes a new 40th Anniversary Edition of the Call of Cthulhu Keeper ...

Tools for the horror rpg "Call of Cthulhu" from Chaosium Inc. This is built according to the 7th edition rules for "Call of Cthulhu" (aka "CoC"), which are available online on the Chaosium website.

This repository contains a Python-based combat simulator for the Call of Cthulhu 7th Edition table talk role-playing game. The simulator is designed to model the intricacies of combat scenarios in the ...

Some fans suggest using Call of Cthulhu rules for a more cooperative and obstacle-focused experience in the campaign. A 2d20 Fallout RPG ruleset already exists, offering a blend of history and ...