"The one thing I've got to say about the Jonstown Compendium on DriveThruRPG, the supplements top tier – they are practically indistinguishable in terms of layout from fully professional releases." — 

We are truly in a Gloranthan Age of Wonders! MOB's Foreword of the recently released Jonstown Compendium title Life of Moonson Book One - The Characters.In addition to Chaosium’s beautiful new RuneQu

UPDATE: APPLICATIONS FOR THE 2025 CHAOSIUM 25TH ANNIVERSARY CONVENTION SUPPORT PACK CLOSE ON JANUARY 31ST AT 11.59PM PT.Attention convention organizers! Since the beginning of our hobby half a century

We are so excited to announce our official RuneQuest Stream! Join our stellar cast from Monday, February 14th at 3PM Pacific, at Chaosium Twitch for our roleplaying game of heroic fantasy rich in magi

Chaosium President Rick Meints shares stories from a life-time as a collector of all things ChaosiumBelieve it or not, the scholarly pursuit of understanding and cataloging the specific color of the d

A TALE OF TWO THREE LOGOSBy Jason Durall, RuneQuest line editorOne of the more significant visual design elements to make for a new game has its choice of a logo. In some cases, such as for licensed

Go to KHAN OF KHANS on Kickstarter here!The Sanskrit word for war literally means "a desire for more cows"......and that's the aim of Chaosium's family game, KHAN OF KHANS—"raid your enemies, win cows

By Mike Mason, Call of Cthulhu line editorChaosium is in the process of working on a newly revised and updated version of the classic Call of Cthulhu world-spanning campaign - Masks of Nyarlathotep.Wh

ISLE OF MADNESS is a hair raising 1930's adventure that takes place on a secret island hidden in the North Atlantic Ocean—and is the first scenario for Pulp Cthulhu in the Miskatonic Repository, Ch

Enter the mythic, Bronze Age world of RuneQuest with our new trailer featuring Becca Scott!

Best-selling Jonstown Compendium title The Armies and Enemies of Dragon Pass is now available in print format! This 388 page work is the magnum opus of 2019 Greg Stafford Memorial Award for Gloranthan

For the second year, Chaosium offers UK Games Expo attendees a Cthulhu workshop, games, and a glimpse at Glorantha. Plus the latest releases at the Chaosium Booth, including Pulp Cthulhu, Doors to Dar