Chaosium has been publishing high-quality books and games since 1975. Today, we publish the acclaimed Call of Cthulhu roleplaying line based upon H.P. Lovecraft's Cthulhu Mythos, the Stormbringer roleplaying line based upon the writings of Michael Moorcock, as well as our Call of Cthulhu Fiction series. The latter are horror anthology trade paperbacks based upon the Cthulhu Mythos of H. P. Lovecraft and his circle of friends and followers.