Today, on Halloween, The Chaosium officially turns 50 years old. On October 31, 1975 our founder Greg Stafford went down to the Alameda County Clerk’s office and filed the paperwork to officially register the company. Greg named us The Chaosium as a tribute to its birth as a “house of Chaos”...
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 in...
Pendragon Classic Kickstarter: new stretch goals announced!
Our Pendragon Classic Kickstarter has another five days to go. Having passed the first two Stretch Goals, Double the Dice and GM Screen, we're pleased to announce new Stretch Goals to carry us through to the end of the campaign...
Immerse yourself in the story with professional narration, atmospheric soundscapes, and a branching narrative faithful to the classic Call of Cthulhu solo adventure. Available October 30, exclusively on the Sound Realms app for iOS and Android. Prepare to face the horrors that lurk in the deep…...
Represent your favorite game your way with Chaosium's all new t-shirt collection!
Whether you're a fan of Call of Cthulhu, RuneQuest, Pendragon, or Vikings, there's something for you!
Check out the full range at our Redbubble store!
Which one are you going to be rocking to your next...
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...
On the plains of Prax, a fabled Storm Calf has descended from the heavens to bless the tribe that captures it!
A new adventure for the RuneQuest Roleplaying Game! The Hunt for the Storm Calf is a stand-alone scenario that contains everything for a riveting adventure in the far east of Dragon...
Less than a week to go to Chaosium Con EU in Gdansk, Poland! And you can still get a badge, and a hotel room at the con venue, Uphagen Manor!
On offer: 102 TTRPG sessions, 20 board game sessions, 23 panels, and 19 VIP sessions with Chaosium luminaries.
And there are only 6 tickets left for...
By Mark Morrison
We've just launched a special bundle to celebrate the First Anniversary of the Companions of Arthur, our community content program for the Pendragon TTRPG at DriveThruRPG. (It's been a year already?)
The bundle includes ALL EIGHT of our original launch titles, at 30% off...
What better product to feature in our 100th Unnatural Selections post than the game Chaosium founder Greg Stafford considered his masterpiece? Here's what reviewers said about the Pendragon TTRPG when it was first released in 1985. And now, 40 years later, as part of the 50th anniversary of the...
Create the perfect beast!
Stats for monsters, enemies, and NPC for all game genres
Rules for creating your own wicked creatures
Compatible with Call of Cthulhu, Pendragon, RuneQuest, and any other D100 game!
Basic Roleplaying: Creatures collects animals, monsters, nonhumans, and nonplayer...
Chaosium's Michael O'Brien aka MOB is a guest of honour at tabletop.me, the Middle East's first tabletop games convention, taking place in Dubai on November 7-9.
MOB will presenting the workshops including 'Get a Foot in the RPG Industry Door' and 'Building Atmosphere at Your Table', and will...
Our heralds have announced the Pendragon Classic Kickstarter's second stretch goal – GM Screen! Once we reach $120,000 in funding this brand new printed item will be included for free to all backers at the Knight of the Realm tier and above! It will also be a free PDF for all backers at the...
In 1984 Jody Lee painted the Pendragon cover art. This iconic painting was given as a wedding present to two of her good friends, one of whom modeled for the stern looking knight immediately to the right of King Arthur.
Jody has given her permission to us to use that art to create a limited...