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The sixth and final episode of our blockbuster Call of Cthulhu actual play series is now up on YouTube!As the world falls to chaos around them, our investigators make one last desperate attempt to save Arkham...Starring Mark Meer as Keeper of Arcane Lore, and Investigators Patrick Logan, Josephine M … read more

One of the stars of our currently-showing blockbuster actual play series Graveyards of Arkham is coming to Chaosium Con in Ann Arbor MI next month! Josephine McAdam, who plays hard-boiled detective Vic Mason, will be a special guest at the convention on April 18-21st. An award-winning … read more

Download for free! – maps and handouts for Call of Cthulhu: Arkham, the definitive guide to the signature setting of Call of Cthulhu. This includes the Player and Keeper Maps of the haunted city, Arkham Outskirts Map, and Massachusetts 1922 Map. Plus the complete four page Arkham Adve … read more

Earlier today (or yesterday, depending on your time zone) the final episode of our blockbuster actual play series Graveyards of Arkham premiered on Twitch TV - if you missed it, don't worry, it will be up on the Chaosium YouTube channel on Sunday at 2:30pm PT / 5:30pm ET.Thank you to all the viewers … read more

-- Keith Herber (January 3, 1949 – March 13, 2009) --Today marks 15 years since Keith "Doc" Herber passed on.Doc was born in Detroit, Michigan and later moved to the Bay Area during his time working at Chaosium on Call of Cthulhu. It’s funny how things change, given that Chaosium … read more

We'll be demoing Chaosium games at Airecon at the Harrogate Convention Centre in Yorkshire UK this coming weekend, Friday 15th - Sunday 17th.All games are short participation demos that last 15-20 minutes. Other slots will be available as drops in between the timetabled sessions.Come and play … read more

Episode five of our blockbuster Call of Cthulhu actual play series is now up on YouTube!Outnumbered and outgunned, our investigators turn to extreme measure and strange allies... Featuring guest NPCs Belinda Cornish - who is also one of the co-writers of the show! - and Becca Scott.Graveya … read more

The 'Unnatural Selections' series is our regular round up of notable Chaosium reviews worth a look.The early reactions were ecstatic, and now that we're four episodes in viewers continue to love our actual play series Graveyards of Arkham.Here's a sampling of YouTube comments by viewers fr … read more