Chaosium, (kay-OSS-ee-yum) is known for publishing high quality books & games, and for having a well-developed sense of fun.
In 1975 we were founded as The Chaosium. In 1980 we incorporated as Chaosium Inc. Chaosium thrives in the mild climate, gorgeous surroundings, and gentle earthquakes of the San Francisco Bay Area.
Most of Chaosium's product lines are based upon literary sources. H.P. Lovecraft's 1920's horror fiction provides the basis of our classic Call of Cthulhu roleplaying game line which has won so many awards that we have lost count, though we do know that there are more than 70 of them. Mr. Lovecraft also provides the inspiration for our many Chaosium Fiction collections. We are now expanding our fiction offering to include other, related, genres.