Chaosium
Chaosium® is the registered trademark of Chaosium Inc.
The Chaosium lets us dream the dreams of dead gods and construct the universe out of its essential runes...
Basic Roleplaying is presented here in an easy-to-use, intuitive, and accessible quickstart.
Themed X cards for Call of Cthulhu, Rivers of London, Pendragon and RuneQuest game sessions
Mystery & Horror in the Victorian Age
Free handouts for Jimmy's Last Dance, a case file for the Rivers of London Roleplaying Game
Adventure, Mystery, & Horror in the 1890s
Three Evenings of Nightmare!
A Horror Mystery in Three Parts!
Free handouts for The Font of All Evil, a case file for the Rivers of London Roleplaying Game
Systems Reference Document and Open Game License
What Kind of Knight Will You Become?
Quickstart Preview of Pendragon 6th Ed, dedicated to the memory of Greg Stafford. Also in Russian & Japanese!
Quickstart Preview of Pendragon 6th Edition
Pendragon scenario by Greg Stafford and dedicated to his memory.
Free Rivers of London RPG introductory solo adventure!
Roleplaying in Ben Aaronovitch's magical version of London, based on his bestselling novels.
Handouts, Charts and Character Sheets for Basic Roleplaying Universal Game Engine
Dive into the ultimate guide to magic for RuneQuest!
RuneQuest Scenario dedicated to the memory of Greg Stafford. Now also available in Japanese!
An encounter location for RuneQuest
Magic, Myth, and Might in a Box!
Quickstart Rules and ready-to-play Adventure. Now also available in Italian!
A Call of Cthulhu nightmare beyond signal range!
Handouts Pack for Alone Against the Tide, Solo Adventure for Call of Cthulhu
An Introductory Solitaire Adventure for Call of Cthulhu
Handouts Pack for Does Love Forgive? - Two One-to-One Scenarios for Call of Cthulhu
Unveil the secrets of the legend-haunted city!
Cthulhu Calls! At long last, the intricacies of the nefarious Cthulhu cult are revealed!
Mythos Horror comes to Jane Austen's England!
Six Scenarios Against The Unknown!
Handouts Pack for the six-part Call of Cthulhu campaign set in the Vermont Hills
Handouts Pack for Call of Cthulhu's Doors to Darkness
Set in the Milton Hotel, a fictional version of the real-world Biltmore Hotel in Providence, Rhode Island
Handouts Pack for Call of Cthulhu's Gateways to Terror
Handouts Pack for the multi-ENnie Award winning supplement for Call of Cthulhu in the land Down Under
Handouts Pack for Horror on the Orient Express, "The most ambitious Call of Cthulhu adventure ever created…"
Handouts Pack for the Gold ENnie Award winning supplement set during the French Revolution
Handouts Pack for Beyond the Mountains of Madness, "Simply one of the best Call of Cthulhu campaigns ever published"
Handouts Pack for Masks of Nyarlathotep, "...widely considered one of the best RPG adventures ever made"
Handouts Pack for The Children of Fear, epic multi-part campaign described as "a gem and an instant classic"
Handouts Pack for Harlem Unbound 2nd Edition, the critically acclaimed sourcebook for Call of Cthulhu by Chris Spivey
Handouts Pack for Berlin the Wicked City, the multi award-winning Call of Cthulhu supplement set in Weimar Berlin
Handouts Pack for Cthulhu Dark Ages 3rd Edition, mythos roleplaying in a world lit only by fire.
Handouts Pack for Call of Cthulhu's Mansions of Madness Vol 1: Behind Closed Doors (Call of Cthulhu)
Handouts Pack for Dead Light and Other Dark Turns, two unsettling encounters on the road
Handouts Pack for The Two-Headed Serpent, the Epic Action-Packed and Globe-Spanning Campaign for Pulp Cthulhu
A Tale of Terror by Sandy Petersen, the godfather of Call of Cthulhu
Modern Day Call of Cthulhu Adventure set in a sleepy English village
Call of Cthulhu Scenario dedicated to the memory of Greg Stafford
Seventh Edition Quickstart Rules and ready-to-play adventure, "The Haunting"
Quickstart Rules and Adventure
7th Sea Scenario dedicated to the memory of Greg Stafford
A Glorantha Board Game