Have you thought about GMing—maybe always wanted to give it a shot—but haven’t quite taken the plunge? What if we told you that by the first week in February, you could be an honest-to-goodness GM—an

Chaosium is producing the Rivers of London Roleplaying Game, based on Ben Aaronovitch’s best-selling urban fantasy fiction. Reflecting the series' inventive take on the fantastic—from Newtonian magic

The ENnies are the annual fan-based celebration of excellence in tabletop roleplaying gaming. This year the Stars Must Have Been Right, because the Call of Cthulhu RPG received an amazing 10 nominatio

Join us on Friday 29th November from 5:30pm at the Forbidden Planet London Megastore for a special Chaosium double book launch and signing event. Co-authors Mike Mason & Lynne Hardy will be signing co

London isn’t the only place where magic is returning to the world...In Liberty’s Shadow: A Guide to Case Files in the USA is a sourcebook for Rivers of London: the Roleplaying Game, based on the River

Gaslight AMA – join three of the co-authors of our newly-released Cthulhu by Gaslight Investigators' Guide live on Twitch. With Mike Mason, Keris McDonald and Lynne Hardy, hosted by Bridgett Jeffries.

Dragonmeet, the annual one day convention in London UK is happening on Saturday November 30th, and we'll be there! Join us at the Novotel Hammersmith for a packed day of fun and surprises.Booth (Upper

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

Eldritch Horror with Bridgerton vibes... this week on The Calyx, the ball gets messy! Secret confessions, mysterious identities, and incriminating ink deepen the mystery as Keeper Becca Scott guides i

Our talented staff artist Loïc Muzy talks with James Coquillat about his experiences illustrating Cthulhu Mythos creatures throughout his career. You can see Loïc's superlative work throughout many Ch

Dive into a mystery where every choice matters! Our newly-released narrative board game unfolds through detailed maps and storybook passages, guiding you deeper into the investigation. Choose your c

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