Recent content by Michael O'Brien

In 2026, our friends at the Glass Cannon Network are unleashing a nationwide US tour soaked in full-blown Lovecraftian dread. Call of Cthulhu Keeper Troy Lavallee helms a shifting roster of GCN icons and special guests—including Joe O’Brien, Skid Maher, Matthew Capodicasa, Jared Logan, Ross...

We announced last year that our friends at Studio Agate had taken over the development and creation of the legendary role-playing game 7th Sea, marking the beginning of a new era for the iconic game. And now, after extensive consultation with fans, they're soon to launch a Kickstarter campaign...

Chaosium Inc is thrilled to announce the theme for Chaosium Con US 2026 costumes and our Thursday night Kick-off party: Campfire Tales - Scouts against Cthulhu! Drawing inspiration from the forthcoming 2026 release Call of Cthulhu: Campfire Tales, this year's festivities invite attendees to...

Prepare for adventures in the Forest Sauvage! Available from Chaosium and your friendly local game store February 4th. Who's excited?

Our incredibly popular Call of Cthulhu Humble Bundle is back again, with the "So you want to try out Call of Cthulhu" Book Bundle! These 26 titles are the perfect on-ramp for Cthulhu-curious tabletop roleplayers looking to take their first forays into the eldritch unknown while supporting a...

Chaosium returns in full force to Gen Con 2026! Once again, we'll have an exclusive event room, and we're on the lookout for a team of personable, charismatic, and passionate GameMasters to help make 2026 even biggest than last year! If you're interested in joining us, apply at the link. All...

Have you thought about GMing—maybe always wanted to give it a shot—but haven’t quite taken the plunge? What if we told you that by the first week in February, you could be an honest-to-goodness GM—and it’ll be easy! New Gamemaster Month officially kicks off today, with sessions hosted online by...

12/31/2025 - Ab Chaos #295 – Coming in 2026! Greg Stafford's long-anticipated Gloranthan novel, A Pyre for Gods and Heroes 01/03/2026 - Ab Chaos #296: In case you missed something, here's everything we released in 2025!

Wow, it sure has been a busy 50th Anniversary year for the Chaosium team! In case you've missed something, here's a reverse run-down of everything new we've released in 2025, on the Chaosium website, at DriveThruRPG, in retail distribution, and a few other unlikely places, such as Steam and D&D...

As many Glorantha fans will know, Chaosium founder Greg Stafford long harbored aspirations to be a published novelist, and worked on perfecting his “Harmast’s Saga” novel over many years – decades even – stopping and starting several times. Greg would sometimes read and share his...

In the Gloranthan calendar, Sacred Time comes at the very end of the year. It marks the joyous time when communities gather together across the world to celebrate building the cosmos anew for a new year. Like our own New Years Eve here on planet Earth, is a time of divinations, omens, and...

Glorantha, 411 S.T. A generation ago, the sun stopped in the sky. By the time it began moving again, the world had been changed. A new god had been born. A new empire risen... In the barren hills between Dragon Pass and Prax, those who reject the new ways live scattered and hunted. Soon, they...

Our community manager Bridgett Jeffries is interviewing GMs from our Cult of Chaos gamemaster program and creators for our community content programs at DriveThruRPG - the Miskatonic Repository (Call of Cthulhu), Jonstown Compendium (RuneQuest-Glorantha), and Companions of Arthur (Pendragon)...

Removal of Masks Significant Streams is a 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. Removal of Masks is an actual play group from Ireland and England who are playing...

"The Arthurian legend holds a different significance for us entering the twenty-first century than it held for Chrétien, for Malory, for the authors of the versions called the French Vulgate…. No doubt it held a different significance again for those who told the old Welsh and other Celtic...