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Artist John Sumrow shows his magnificently eldritch cover painting for the forthcoming new edition of Daniel Harms’s Encyclopedia Cthulhiana, which will be released in the second half of 2026. First published by Chaosium in 1994, the Encyclopedia Cthulhiana: A Guide to Lovecraftian … read more

Hear ye, hear ye! The Pendragon: Noble's Handbook is packed with new rules markets, manors, castles, family events, creating Player-ladies, and, of course, horse breeding! The beautiful tome will be available in standard and collector's edition in May. What Kind of Knight Will You Become? Pendr … read more

QuestWorlds is Chaosium's complete, rules-light system focussed on resolving in-play conflicts quickly and easily. It centers around a simple core mechanic and optional rules that allow you to customize your game to suit any setting or genre. And it's now available in hardcover format! Rules- … read more

"The Miskatonic Repository has allowed both new and established authors to self-publish material for Call of Cthulhu under licence from Chaosium. It has proved immensely popular, and there are now more scenarios published there than any mortal could hope to play in their puny human l … read more

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 Campfire Tales Seth Skorkowsky, Youtube sensation and co-host of the Modern Mythos podcast Ashley May Kin … read more

Stealing the Eye, our newest RuneQuest release, features this striking cover art by Ossi Hiekkala. The scenario was inspired by Tom Sullivan’s classic cover painting for Gods of Glorantha (Chaosium/Avalon Hill, 1985). Which was in turn a homage to the iconic cover painting by D.A.Trampier fo … read more

Our friends at the H.P. Lovecraft Historical Society are running a raffle to raise funds for the restoration of the home of famed pulp writer and friend of H.P. Lovecraft, Robert E. Howard (Conan the Barbarian, Red Sonja, Soloman Kane, etc).  The Robert E. Howard Foundation maintains his home … read more

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 through paragraphs that describe locations, possible actions, and the consequences of your decisions. … read more