What kind of mystery is the hardest to solve? Rivers of London line editor and Call of Cthulhu associate editor Lynne Hardy shares some useful advice about how to make your own mysteries from scratch,

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 will be at Armageddon Expo, Friday 10 June - Sunday 12 Jun 2022 at the Auckland Showgrounds, Auckland New Zealand.Find us upstairs as part of RPG Alley, with a cheerful crew of Cult of Chaos

With an extensive array of Chaosium credits between them (Terror Australis, Reign of Terror, Horror on the Orient Express, and much, much more), we are delighted to announce MARK MORRISON and PENELOPE

Our Free RPG Day 2018 release, Lynne Hardy's SCRITCH SCRATCH for Call of Cthulhu, is now available in general release!You can download a free copy of the PDF here.Or, if you'd like a print copy, it is

-- ARPIA Winners Kat Clay (l) and David Waldron (r) with Chaosium vice president Michael O'Brien (c) --Congratulations to Chaosium community content creators Kat Clay and David Waldron, who won awar

The Shadow Over Providence is a Call of Cthulhu scenario written by Jon Hook of the Miskatonic University Podcast/Modern Mythos Podcast. It was developed and first published by Chaosium to celebrate N

Chaosium's Lynne Hardy, line editor of our forthcoming Rivers of London RPG and Associate Editor for Call of Cthulhu, shares her insights to James Coquillat about evolving perspectives and voices in g

Event Registration is open for the Call of Cthulhu Miskatonic Repository Convention! This is a three-day virtual convention celebrating Chaosium’s online collection of user-made content in the Miskato

Horror on the Orient Express: The Board Game arrives on Kickstarter on April 2nd!Back the project to get an exclusive horror train mini, available only during the campaign! The classic Call of Cthulhu

Significant Streams is a feature on the Chaosium news blog where we highlight actual play streams, podcasts, and YouTube channels featuring Chaosium games that we think are worth checking out.In our 5

A group of investigators will inch towards the Edge of Darkness, next week on the Stream of Chaos!Tune in to see London Carlisle, Becca Scott, Patrick Keefe, and Cynthia Marie playing with Chaosium's