Blog
A Lonely Thread Live - PAX 2025
Posted by Michael O'Brien on 13th Nov 2025
We had fun at PAX AUS last month, with a fun-filled night of the world's best roleplaying game of mystery and horror! Our Stream of Chaos team (David Naylor, James Coquillat, Alex Caton, Art Hunter, and Jackson Heenan) took the stage to present an evening of terror, laughs, and Mythos mystery,
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Chaosium Community Corner Interviews with Bridgett: Miskatonic Playhouse
Posted by Michael O'Brien on 9th Nov 2025
Our community manager Bridgett Jeffries is interviewing GMs from our Cult of Chaos gamemaster program and creators for our community content programs at DriveThruRPG - the Miskatonic Repository (Call of Cthulhu), Jonstown Compendium (RuneQuest-Glorantha), and Companions of Arthu
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Coming soon: Chaosium 50th Anniversary Call of Cthulhu Slipcase Set features new cover art by acclaimed Swedish artist Ola Larsson
Posted by Michael O'Brien on 5th Nov 2025
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We have another surprise to close out the year of our 50th anniversary...
The Call of Cthulhu Slipcase Set Chaosium 50th Anniversary Edition!
This slipcase set contains the Call of Cthulhu: Keeper Rulebook, Call of Cthulhu: Investigator Handbook, and Call of Cthulhu: Keeper Screen Pack
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Call of Cthulhu - The Audio Investigations launches with Alone Against the Tide
Posted by Michael O'Brien on 30th Oct 2025
The first official Call of Cthulhu audio investigation adventure, Alone Against the Tide, is now available on Sound Realms.Step into the story as it unfolds around you, with full voice acting, cinematic music, and chilling 360° surround sound design that brings Lovecraftian horror to life
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Miskatonic Monday #105: the Miskatonic Repository Halloween Collection is back for 2025
Posted by Michael O'Brien on 27th Oct 2025
Back for 2025! The Miskatonic Repository Halloween Collection brings together a diverse range of scenarios from independent Call of Cthulhu creators, all at 60% off until November 9th.
There are so many titles on offer, this year the bundle is a two parter!
2025 Bundle Part One
2025 Bundle Part Two
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Halloween Sale: Over 1400 Call of Cthulhu titles are 31% off at DriveThruRPG
Posted by Michael O'Brien on 23rd Oct 2025
Over 1400 Call of Cthulhu titles are 31% off for a limited time for DriveThruRPG's Halloween SALE!
Whether you're looking for official titles in PDF or ready-to-play on Roll20 or want to dive deeper into our fantastic Miskatonic Repository Community Content Program, there is something for ever
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Miskatonic Monday #104: Get the 29 scenarios played Miskatonic Repository Con 2025 for a special price and support independent Call of Cthulhu creators!
Posted by Michael O'Brien on 20th Oct 2025
This special bundle contains 29 scenarios ran during this year's Miskatonic Repository Convention, sold at -60% their full price. This special offer lasts until November 2.
Buying it is a perfect opportunity to read and play the Miskatonic Repository's newest and most thrilling releases, and t
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Save 40% on the Call of Cthulhu Classic 1 inch Boxed Set - While Stocks Last!
Posted by Michael O'Brien on 14th Oct 2025
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SAVE 40% - The Call of Cthulhu Classic 1" box is on sale, was $39.99 now $24.00. Price includes PDFs.
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A recreation of the classic Call of Cthulhu boxed set from 1981, brought to horrific life for the game's 40th anniversary.
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This is a Chaosium website exclusive offer, while stocks last:
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