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  1. Michael O'Brien

    Release [Chaosium] Out now! Basic Roleplaying: Creatures

    Any monster. Any setting. Any genre. Any game! Basic Roleplaying: Creatures collects animals, monsters, nonhumans, and nonplayer characters drawn from history, science fiction, fantasy, prehistory, mythology, and the modern world, allowing for any gamemaster to use them in any D100-based game...
  2. Michael O'Brien

    Press [Chaosium] A new Ask Me Anything coming – Basic Roleplaying: Creatures

    Get ready for another Ask Me Anything! Submit your burning questions about Basic Roleplaying: Creatures now! Due out on November 12. Join host Bridgett with creators Neil Robinson and Jason Durall on YouTube in the coming weeks! Submit your questions now: https://buff.ly/G6kdsLw
  3. Michael O'Brien

    Press [Chaosium] Mark Morrison: BRP Creatures: something monstrous this way comes

    By Mark Morrison I won’t lie to you. When I saw Jason Durall's sneaky photo of a huge stack of the new Basic Roleplaying: Creatures book making its pre-release debut at Essen, my first thought was “I can’t wait to attack my players with those things.” There’s something irresistible about a...
  4. Michael O'Brien

    Media [Chaosium] A Lonely Thread Live - PAX 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...
  5. Michael O'Brien

    Press [Chaosium] Age of Vikings: Hólmgang!

    by Carol Tierney Let’s talk about hólmgang, a very Viking way of settling scores. This is one the most evocative elements you can drop into an Age of Vikings game. Honour and reputation were crucial to the Viking worldview. With strength and fighting prowess viewed as pinnacles of virtue, it...
  6. Michael O'Brien

    Coming [Chaosium] Coming soon: Chaosium 50th Anniversary Call of Cthulhu Slipcase Set features new cover art by acclaimed Swedish artist Ola Larsson

    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, all...
  7. Michael O'Brien

    Press [Chaosium] Chaosium is coming to Dragonmeet, London UK 29th November - Rivers of London creator Ben Aaronovitch is our special guest

    Chaosium is coming to Dragonmeet on Saturday November 29th. The annual one day event has a new location at London Excel in London's Docklands. Chaosium Booth David Scott and Laurence Finch will be manning our booth. They'll have a wide range of publications available. Specials and new products...
  8. Michael O'Brien

    [Chaosium] Today, on Halloween, The Chaosium officially turns 50 years old

    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”...
  9. Michael O'Brien

    Coming [Chaosium] Coming Oct 30: Call of Cthulhu - The Audio Investigations

    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…...
  10. Michael O'Brien

    Release [Chaosium] Represent your favorite game your way with our all new Chaosium Quotes t-shirt collection!

    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...
  11. Michael O'Brien

    Release [Chaosium] A new adventure for RuneQuest!: The Hunt for the Storm Calf

    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...
  12. Michael O'Brien

    Sale [Chaosium] Round Table Roundup #6: Celebrate the first anniversary of The Companions of Arthur with a special bundle

    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...
  13. Michael O'Brien

    'The best designed, most attractive, and most effective traditional role-playing game I have ever seen'

    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...
  14. Michael O'Brien

    Coming [Chaosium] Create the perfect beast: BRP Creatures book releases on November 12

    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...
  15. Michael O'Brien

    Press [Chaosium] Chaosium's Michael O'Brien is a guest of honour at tabletop.me (Dubai, November 7-9)

    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...
  16. Michael O'Brien

    Kickstarter [Chaosium] Pendragon Classic Kickstarter adds new 'Knight of the Round Table' backer level with iconic art print by Jody Lee

    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...
  17. Michael O'Brien

    Sale Halloween Sale: Over 1400 Call of Cthulhu titles are 31% off at DriveThruRPG

    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 every...
  18. Michael O'Brien

    Press 'Your Glorantha Will Vary'

    Glorantha is one of the oldest and most influential fantasy role-playing settings. It is the masterpiece of legendary designer Greg Stafford, who accumulated Glorantha's myths, legends, and other lore from 1966 until his passing in 2018. “YOUR GLORANTHA WILL VARY” is a long-established...
  19. Michael O'Brien

    Release {Chaosium] Get the 29 scenarios played Miskatonic Repository Con 2025 for a special price and support independent Call of Cthulhu creators!

    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 to...
  20. Michael O'Brien

    Release [Chaosium] Age of Vikings is now on Foundry VTT

    Hear the call of glory and honor, journey proud across your land free from the tyranny of kings and queens—enter the Age of Vikings, now on Foundry VTT. In the Age of Vikings roleplaying game, you are transported to medieval Iceland—a vibrant land on the edge of the known world, where Vikings...
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