Lords of the Middle Sea: The Roleplaying Game is in development. Based on Lynn Willis's 1978 futuristic proto-Steampunk board game, set in the post-apocalyptic ruins of a flooded North America, the ta

We're excited to announce Call of Cthulhu maestro, Pendragon community ambassador, and Chaosium editorial associate Mark Morrison is an international guest of honour for Chaosium Con EU 2026. Mark wo

Did you know John Kovalic's popular comic series Dork Tower is an affectionate pun-on-a-pun, taken from Jennell Jaquays' "Legendary Duck Tower” for RuneQuest, itself a pun on Jennell's earlier D&D "Da

The Miskatonic Repository is Chaosium's exciting new way for creators to publish and distribute their own original Call of Cthulhu content. Want to take part? Check out the easy-to-follow creation gui

Everyone’s wellbeing is more important than any game. The X Card system created by John Stavropoulos is one way to help players and game masters feel safe and comfortable when roleplaying together, e

Chaosium President Rick Meints shares stories from a life-time as a collector of all things Chaosium.All RPG publishers struggle with getting the rules for the first editions of their games right. No

Gamehole Con is all about tabletop gaming and all the fun that goes with it. And we're excited to be coming to Gamehole. In fact, we're major sponsors this year, as part of our company's 50th anniver

Out now for Foundry VTT - the Pendragon Starter Set! It contains everything a fledgling Gamemaster requires to run a band of freshly-knighted characters through several adventures in the historic fan

FINAL DAY!Today (Dec 31st) is your LAST CHANCE EVER to order Khan of Khans and Miskatonic University: The Restricted Collection. And for only $9.99 each! We will be turning off sales at 11.59pm PT.Cha

RuneQuest and BRP creative director Jason Durall talks through his tactics to learn new TTRPG settings fast. Part of the Chaosium Interviews series with James Coquillat.

Here's a partial list of the awards we've won over the years. We've lost track of some of our awards, so if you know of any that are not listed here, please contact us. 2026ENnie Awards -...

Chaosium President Rick Meints shares stories from a life-time as a collector of all things ChaosiumAs I mentioned in an earlier 'Out of the Suitcase' post, I've recently been in the process of updati