Three evenings of nightmare: No Time to Scream contains three short-play scenarios for Call of Cthulhu. Winner of the 2026 Origins award for Best RPG Supplement, each scenario is perfect for a single

The new edition of the Pendragon TTRPG is coming! Line Editor David Larkins is here talking to James Coquillat about all the exciting things contained within.Meanwhile, please take a look our special 

Our smash hit Call of Cthulhu actual play series Graveyards of Arkham is playing now - catch new episodes on Twitch on Wednesday and YouTube the following Sundays! And celebrate the series with our fr

The new edition of the Pendragon TTRPG is coming! For our Chaosium Interviews series, James Coquillat talks to Pendragon Line Editor David Larkins about the complexities of staying true to the titanic

Thanks to the enthusiastic response, Humble Bundle has extended our So You Want To Try Out Call of Cthulhu bundle offer for one more week!  Just $25 gets you over $425 worth of digital Call of Cthul

The 'Unnatural Selections' series is our regular round up of notable Chaosium reviews worth a look. No Time Scream won Best RPG Supplement in last year's Origins Awards. This collection of three shor

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

A Free Trial of Call of Cthulhu! Download the Call of Cthulhu Quick-Start Rules - an easy way to learn the base rule

Out now for Call of Cthulhu! No Time to Scream contains three short-play scenarios for Call of Cthulhu.Each scenario is perfect for a single evening of mystery and horror, and are designed to be playe

The Stream of Chaos is playing RuneQuest!In this episode, the heroes—Bridgett Jeffries, David Naylor, London Carlisle and Cynthia Marie—resolve their mission and take some much needed rest; in RuneQue

Episode 2 of Bookshops of Arkham is now live on YouTube! Watch the official blockbuster actual play of Call of Cthulhu, and see episode 3 this Wednesday over Roll20's Twitch channel.Bookshops of Arkh

To coincide with the launch of the Call of Cthulhu Starter Edition, we've created a new video series introducing the game. Specifically pitched to newcomers to roleplaying games and Call of Cthulhu, t