Members of our Cult of Chaos gamemaster program can now download part two of Flotsam and Jetsam, our new Organised Play campaign for Call of Cthulhu.Flotsam and Jetsam is presented as four separate an

Paris, 1789: Mythos Horrors during the French Revolution!The award-winning team from the Stream of Chaos were tossed into the terror of the French Revolution – and you can watch their tribulations on

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,

"You Too Can Self-Publish Call of Cthulhu" says the award winning gaming site Gnome Stew.The Gnome Stew article is by Miskatonic Repository creator Bridgett Jeffries. Bridgett says she's written this

Download the free 36 page handouts pack for Rivers of London: Jimmy's Last Dance, our newest case file for the award-winning Rivers of London Roleplaying Game. It contains GM resources, player handou

Here's 13th Age Glorantha authors Rob Heinsoo and Jonathan Tweet holding up a printer's proof copy of 13G that Chaosium passed on at Origins. Rob says, "We knew it was big. And now we know it's beauti

Members of our Cult of Chaos gamemaster program can now download 'Insanitarium', part three of Flotsam and Jetsam, our new Organised Play campaign for Call of Cthulhu. Flotsam and Jetsam is presented

DriveThruRPG has launched four Charity Bundles for Ukrainian Relief! Many publishers and creators are supporting this initiative, with over 120 titles on offer. All proceeds will go towards emergency

The old wooden stairs creak ominously as you descend to the cellar floor, somehow feeling much further than it is. Even with a flickering lantern, the shadows seem to leap out at you. As you reach the

In 2026, our friends at the Glass Cannon Network are unleashing a nationwide US tour soaked in full-blown Lovecraftian dread. Call of Cthulhu Keeper Troy Lavallee helms a shifting roster of GCN icons

Author of the ENNIE-nominated Hand of Glory Allan Carey says:"Voting is open for the ENnies and I have been nominated for Hand of Glory. This was the fourth Call of Cthulhu scenario I wrote for the Mi

This is the free 147 page handouts pack for the Cthulhu by Gaslight Investigators' Guide containing pregen characters and maps for use with the book. Print them and use them again and again!A New Sett