An essential spotter’s guide for the budding and experienced preternaturalist.• Accurate and complete• 53 Lovecraftian creatures categorized and detailed• Full color illustrations• Size comparison cha

We are very proud of the alumni of the Summer 2022 RPG Writer Workshop! These new bundles at DriveThruRPG are a great way to see their handiwork and support and encourage these talented first-time TTR

Gen Con event tickets will be released for purchase by the public on May 19th. With our support of crack team of GMs and Keepers from the Cult of Chaos, our director of organised play Todd has put tog

Best-selling Jonstown Compendium title The Armies and Enemies of Dragon Pass is now available in print format! This 388 page work is the magnum opus of 2019 Greg Stafford Memorial Award for Gloranthan

Cthulhu by Gaslight: Ready to Play Your Way on Roll20! Get over hundreds of tokens, beautifully designed maps and handouts, drag and drop supported items, and much more! Play Cthulhu by Gaslight

Here's everything we released in 2021 on DriveThruRPG in case there's something you missed for your DriveThruRPG library:JANUARYMalleus Monstrorum Keeper Deck (Call of Cthulhu)The monsters of the Cthu

S. Petersen's Field Guide to Lovecraftian Horrors, aka The Petersen Guide, was the first collaboration between Chaosium and Editions Sans Détour, the French licensee for Call of Cthulhu. Christian Gru

Watch as Cynthia Marie, London Carlisle, Josephine McAdam, and Jess McDonell step into the world of RuneQuest for the very first time! GM Brian Holland leads an all-star guest cast of new RuneQuest pl

Chaosium has appointed Community Ambassadors for its Miskatonic Repository and Jonstown Compendium community content programs on DriveThruRPG.The Miskatonic Repository is Chaosium's platform on DriveT

-- releasing in December 2024 --Cthulhu by Gaslight: Investigator’s GuideAdventure, Mystery, & Horror in the 1890sThe 1880s—Victorian England. Mystery and adventure in fog-shrouded streets and alleywa

Pookie of Reviews from R'lyeh has reviewed all five of our free #weareallus scenario releases honoring Greg Stafford: Helena Nash's The Rattling Wind (RuneQuest): "A rollicking good scenario... makes

If Facebook's your thing, come join us in the Chaosium tribe over there: 26,000 chaos cultists now!You can also be part of the tribe on G+ and through our forums at BRP Central, or follow Chaosium on