Recent content by Michael O'Brien

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...

In the anarchy following the Dragonrise, the Sartarite town of Runegate has been left to fend for itself. Now, the newly-established Queen Laika Blackspear has sent a band of adventurers to bring tidings to Runegate, but what they discover upon arrival is beyond their nightmares… A Darkness at...

Another Save the Date! Chaosium Con New Zealand is happening in November (21-22), and we have exciting news for the Monday night following the convention! In conjunction with the H.P. Lovecraft Historical Society, on Monday 23rd 2026 Chaosium Con New Zealand will be presenting a special...

More new releases in the Miskatonic Repository, our independent creator program for Call of Cthulhu at DriveThruRPG. Showing the amazing diversity of Call of Cthulhu, settings here range from a Nazi zeppelin, to 1990s Japan, to Iron Age Europe. As always, if you like what you see, leave a star...

The Jonstown Compendium is where you can find —and create —self-published material for your roleplaying in Glorantha with content for RuneQuest, along with the QuestWorlds, and 13th Age Glorantha systems. Remember you like what you see in the Jonstown Compendium, remember to give the creators a...