Coming to Gen Con 2026? We look forward to seeing you! If you're new to our games, or a Chaosium fan from way back, we have so much in store for you at the Indiana Convention Center, Indianapolis IN,

RuneQuest: Weapons & Equipment - Prepare for AdventureAn essential guide to a wide range of items, goods, services, training, magical items, and beasts for RuneQuest players and Game Masters. RuneQues

It is two years since the passing of Chaosium company founder Greg Stafford. As one of the greatest game designers of all time; winner of too many awards to count; and a friend, mentor, guide, and ins

The 'Unnatural Selections' series is our regular round up of notable Chaosium reviews worth a look. Reviewers and fans alike have described our recent new Call of Cthulhu releases with such terms as

Submit your questions for a coming AMA: Encyclopedia Cthuliana, the definitive guide to the Cthulhu Mythos. Our host Bridgett Jeffries will be talking with Encyclopedia Cthulhiana author Dan Harms.  

And, what has happened to that nice, quiet neighbor of yours?... He wasn’t always the friendliest of sorts, but he did seem very pious, what with all the late-night prayers coming from his room…Call o

Golden Goblin Press to produce "Cthulhu Invictus" Ancient Roman-era line of Call of Cthulhu supplementsChaosium today announced a new licensing arrangement with Golden Goblin Press for "Cthulhu Invict

Chaosium Unveiled looks at In Liberty's Shadow – A Guide to Case Files in the USA. This is a new sourcebook for Rivers of London the Roleplaying Game, based on the Rivers of London series by Ben Aaron

Chaosium is excited to be once again participating in the 'Pinny Arcade' Pin Quest at PAX! Last month at PAX Aus we debuted 'The Cloisonné of Cthulhu', designed by ENnie award-winning artist Andrey Fe

UNVEIL THE SECRETS OF THE LEGEND-HAUNTED CITYCall of Cthulhu: Arkham is the definitive guide to the signature setting of Call of Cthulhu.On the streets of Arkham, the threat of the Cthulhu Mythos is e

  We have a lot in store for you for the first half of 2025!   JANUARY – Jimmy's Last Dance for Rivers of London the Roleplaying GameFEBRUARY – QuestworldsMARCH – Gamemaster's Handbook for Pendrag

Two million Critters, exposed to the madness of Call of Cthulhu! Critical Role's acclaimed one-shot "Shadow of the Crystal Palace" has just clicked over 2,000,000 views on YouTube!This special Call of