Already regarded as "one of the best RPG adventures ever made" (Gizmodo) and "...a milestone for Call of Cthulhu and for RPG campaigns (that) expanded our ideas of what roleplaying game adventures cou

Horror fans and Call of Cthulhu players in Melbourne Australia are looking forwards to the 20th anniversary screening of Call of Cthulhu, the marvelous silent movie adaptation of H.P. Lovecraf

Available as a free download! The Elder races of Glorantha are far more distinctive and unique than non-human characters found in many other fantasy settings.  This pack includes 14 pre-generated Run

We've created six FREE Art Packs of Call of Cthulhu-themed artwork which you are welcome to include in your Miskatonic Repository creations.The Rogues Gallery Art Pack contains 46 portraits, each a ch

The Phantasmagorical Art Pack contains 46 illustrations, each an artistic revelation of phobias and madness by Rueben Dodd. You can use them for FREE in your Miskatonic Repository creations!What is t

The new edition of the Pendragon TTRPG is coming! For our Chaosium Interviews series, James Coquillat talks to Pendragon Line Editor David Larkins about the complexities of staying true to the titanic

Once again, PAX Aus is giving us dedicated tables reserved to run Call of Cthulhu and RuneQuest. We've got convention scenarios ready to run, so all we need now is Keepers and GMs. Can you come to hel

The stars will soon align! : Call of Cthulhu is officially coming to Roll20, the on line virtual tabletop for pen and paper RPGs. To mark the announcement, Roll20 have created their own version of The

Award-winning Chaosium licensee TYPE40's amazing 3D digital gamer props are now available directly at Chaosium.com!These 3D digital gamer props are a great way to enhance your tabletop experience. Pla

The wait is over!  Call of Cthulhu is Chaosium’s tabletop roleplaying game of mystery and horror set within the world of the Cthulhu Mythos. Players take on the role of investigators of the strange, a

Our coming board game Miskatonic Tales: Journey to Innsmouth takes you on three adventures set in and around a mysterious seaside town, well known from the Cthulhu Mythos. You experience the story th

We are pleased to announce our Guests of Honor for Chaosium Con USA 2026, taking place in Ann Arbor MI in April! Josh Hoyt, lead author of the eagerly-anticipated coming Call of Cthulhu release Campf