Recent content by Michael O'Brien

04/12/2026 - Ab Chaos #305: Props You Can Hear: The H.P. Lovecraft Historical Society's Call of Cthulhu Audio Prop Collection

Bump up the fun in your Call of Cthulhu games! Our fiendishly creative friends at the H.P. Lovecraft Historical Society have released a fab new line of Audio Props. For years they've been creating detailed, award-winning props to enhance realism and drama in games and productions. And now...

Adventure is Calling Again – Chaosium will be at the second Call to Adventure at Kensington Town Hall. Kensington UK on April 18th. At our booth David Scott will have a selection of Chaosium releases for purchase, and will be running free game demos. The one day show runs from 10am - 6pm...

Bridgett Jeffries is coming back with another AMA, this time to talk about What's Happening with the 7th Sea roleplaying game, specifically the new Third Edition of the game, currently being Kickstarted by our friends at Studio Agate (last two days: back here!). Bridgett's guest is one of the...

Welcome to the second Volumes from Valhalla. In these posts we'll highlight new releases in the Sagas of the North, our new community content program at DriveThruRPG. Here, independent creators can make and sell their own content for the award-winning Age of Vikings roleplaying game. If you...

04/09/2026 - Ab Chaos #304: Announcing Sagas of the North, a new community content program for Age of Vikings!

Our friends at Studio Agate have launched a new edition of legendary cinematic swashbuckling game 7th Sea. And there’s still time to join the adventure on Kickstarter and claim the rewards unlocked during the campaign: https://www.kickstarter.com/projects/agate/7th-sea-ttrpg-a-new-journey...

We're sad to announce we won't be coming back to the Edinburgh Fringe Festival this year. For the past two years we've staged Call of Cthulhu Live in the Library with stellar casts to sell-out audiences. This was all thanks to the generosity of the National Library of Scotland (it helped our...

Cthulhu by Gaslight: Dust and Blood is now available on Roll20 VTT. The scenarios in our new release for Cthulhu by Gaslight highlight the grimy underbelly of Victorian London. The first, Dust to Dust, works well for novice Keepers and players, while Signs Writ in Scarlet provides a deeper and...

Transform your table into Victorian England with Syrinscape's incredible Cthulhu by Gaslight: Dust & Blood SoundPack! This SoundPack contains audio files to help you run the two brand new scenarios in this awesome new book for Cthulhu by Gaslight. Get your copy of Cthulhu by Gaslight: Dust &...

04/04/2026 - Ab Chaos #303: Dust & Blood for Cthulhu by Gaslight, A Darkness at Runegate for RuneQuest - plus, come and game with us at Hobbiton in New Zealand!

Get your WHERE: Museum of New Zealand Te Papa Tongarewa (Tākina Wellington Convention & Exhibition Centre), Te Aro, Wellington, Aotearoa New Zealand WHEN: November 21-22 2026 Chaosium Con New Zealand will feature International and Local Special Guests, a plethora of gaming sessions, VIP game...

Chaosium, in partnership with Green Dragon Gamers, invites you to a very special Middle-earth Adventure! On Saturday November 28th, the weekend following Chaosium Con New Zealand, we'll be playing TTRPGs in the Green Dragon Inn at Hobbiton until midnight. The gaming comes after the full...

In the world of Glorantha, Jack-o-Bears are shaggy, bear-like creatures with heads that resemble pumpkins. They have the chaotic power of paralyzing their foes, freezing them in place until the jack o'bear dies, or it is otherwise dispelled. Read more about Jack-o-Bears in the RuneQuest...

The scenarios in this book highlight the grimy underbelly of Victorian London. The first, Dust to Dust, works well for novice Keepers and players, while Signs Writ in Scarlet provides a deeper and more widespread mystery to challenge experienced players. Cthulhu by Gaslight: Dust and Blood...