SPEC-OPS MAGICA CRISIS is the first ‘indy’ Genre Pack for the newly-released QuestWorlds roleplaying game. Set in modern Japan you play a student at an elite magic school. Able to wield the magical p

Our award-winning Stream of Chaos actual play team have just finished playing The Font of All Evil, a case file for Rivers of London, Chaosium's roleplaying game based on the popular urban fantasy nov

All Aboard! - Horror on the Orient Express: The Board Game is now live at Kickstarter! The classic Call of Cthulhu TTRPG campaign has been brought into the board gaming world by the authors of Nemesis

Campfire Tales is our new Call of Cthulhu sourcebook where the players to take on the role of scout-investigators coming face-to-face with dangers beyond this world. And we've got an All Star actual

Tabletop Gaming Live at Alexandra Palace, London, is less than two weeks away!And Chaosium will be there, with RuneQuest and Call of Cthulhu demo games:RuneQuest - Roleplaying in GloranthaAn all-new e

Looking to Play Online? Take a look at our Getting Started with Online Play for Call of Cthulhu!

All manuscripts should be submitted in MS Word (either .doc or .docx). All submissions should use American English. We advise English writers to set up the document with US English as the default...

For the special Call of Cthulhu 40th anniversary Keeper Rulebook we've included a new preface section, along with the classic scenario, The Haunting, which can be found at the end of the book. Contri

Call of Cthulhu is Chaosium Inc.’s roleplaying game of mystery and horror inspired by the fiction of H. P. Lovecraft, the originator of c

A note of thanks from Chaosium...It's over - Sandy Petersen's The Gods War attracted nearly 2000 backers, and raised over $585K - wow! Sandy has his note of thanks from Petersen Games to everyone who

Dark Schemes Herald the End of the World: this Saturday Chaosium Inc and HowWeRoll present Masks of Nyarlathotep, on Chaosium Twitch! In the Keeper's chair is Scott Dorward of the Good Friends of Jack

Reanimation of the classic Call of Cthulhu campaign!The new edition of Masks of Nyarlathotep, which we formally announced at Gen Con and Necronomicon last week, is a complete revision and updating of