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The Cult of Chaos is Chaosium's official Gamemaster program for Game Masters and Keepers running demonstration games and games at events. Members run games at local game shops, events, conventions, or online to introduce new players to awesome Chaosium games including Call of Cthulhu, Rune … read more

Pendragon Starter Set-- Releasing on June 29th --Update: out now!https://www.chaosium.com/pendragon-starter-setCHA2729-X$29.99*Three softcover full color booklets, pregen character sheets, appendices, battle cards, diceBoxed SetISBN 978-1-56882-574-8Author: Greg StaffordCover Art: Mark SmylieArtis … read more

By David Larkins, Pendragon line editor.A new edition of the Pendragon RPG is coming! The intention of this series of design journals by Pendragon line editor David Larkins is to trace the path of development, starting in the early 1980s and culminating with the forthcoming new edition of the Pendra … read more

Gen Con ONLINE 2023 takes place at the same time as the in-person event in Indianapolis, August 3-6. And through our Cult of Chaos gamemaster program, we'll be running online gaming sessions. Gencon Online badges are free to all participants.GMs Needed!If you're interested in GMing one or … read more

Significant Streams is a new 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.Good Friends of Jackson Elias co-host Paul Fricker posted that ten years ago their award-winni … read more

A Time For Heroes And A Time For Adventure!Do you dream of swinging into the temple of an ancient evil on a vine, just in time to kick the forbidden scroll from the hand of the cult leader? Do you yearn to play a character dripping in quips, who can stand on the wing of a steadily ascending bi-pla … read more

The 1920s is the classic era for Call of Cthulhu. And if your game is set in that period, independent creators in the Miskatonic Repository have you set! Here's all the newest 1920s scenarios for your consideration and delectation:Swamp Song: A 1920s Scenario for Call of CthulhuKeeper Doc ($2.9 … read more

Alone Against the Tide is a solo scenario. All you need is the book, and your copy of the Call of Cthulhu Starter Set or Keeper Rulebook, some dice and pencils, and you’re ready to begin your horrific trip to the lakeside town in Massachusetts! But, as our Stream of Chaos crew show here in this … read more