Recent content by Michael O'Brien

Chaosium is delighted to announce the appointment of Paul Tobin as an Art Director. Based in Wellington, New Zealand, Paul has had a distinguished career as a Senior Concept Artist and Art Director at Wētā Workshop, contributing to major projects including The Hobbit trilogy, the Avatar...

40% off these fatal tomes! Our Cthulhu by Gaslight special leatherette Investigators' Guide and Keepers' Guide are in Scheel's Green, a shade that is both authentically Victorian – and deadly (back in the Victoria era the coloring was made with arsenic). Cthulhu by Gaslight is a stand-alone...

As part of our 50th anniversary celebrations Chaosium President Rick Meints is attending Cthulhu in a Castle, brand-new three-day Call of Cthulhu RPG vacation event—set within the eerily atmospheric halls of Cairnwood Estate in Philadelphia, PA. In collaboration with our friends The Game...

The Complete Call of Cthulhu Experience The Call of Cthulhu Keeper Rulebook, Investigator Handbook, and Keeper Screen Pack are brought together in a premium collector’s slipcase, with all new cover art by acclaimed Swedish artist Ola Larsson to celebrate the 50th anniversary of Chaosium...

Save 50% on all of our Starter Sets and 40% across our complete range of Collector Leatherette Editions. And you get the PDF included in the price! Black Friday Sale ends 11.59 PT Friday December 5th. Important note, not all products are available in every warehouse location and stocks of...

30% off over 1300 Chaosium digital titles in @DriveThruRPG's Black Friday-Cyber Monday Sale. Until Monday Dec 8th. https://bit.ly/3MaVQWN

Take your Game Master skills to the next level as our panel of expert GMs share with you the tips and tricks to writing scenarios, running games, and making your game the best it can be! This is a recording of a live panel from PAX Australia, shot in early October 2025. Chaosium's Brian Holland...

Freed from the shackles of the Lunar Empire, the people of Sartar stand at the dawning of a new day. Lands of RuneQuest: Sartar is coming in 2026! In the meantime, start your explorations of the signature setting of Bronze Age fantasy with the award-winning Lands of RuneQuest: Dragon Pass! Get...

Physical proof copy of Chris Gidlow's CREDO has descended from the heavens today (well, arrived by air courier): it's glorious! Prepare thee for an Anno Domine 2026 release.

Chaosium X Cards now on Redbubble Everyone’s wellbeing is more important than any game. The X Card system created by John Stavropoulos is one way to help players and game masters feel safe and comfortable when roleplaying together, especially in convention and game store settings where people...

Create the perfect setting for research, downtime, or maybe a surprise encounter for the investigators! Syrinscape's Call of Cthulhu: Miskatonic University SoundSet brings this famed institution to life with incredible sound & music. Syrinscape's Ben Loomes says, "This Soundset is indispensable...

UK Chaosium fans—good news! We've had a big restock in our UK warehouse, and a long list of titles are now available again to order from Chaosium.com. Remember, when you order direct the PDF is included in the price (same deal applies for our warehouses too) RUNEQUEST Cults of RuneQuest...

If you're at PAX Unplugged in Philadelphia PA this weekend don't forget to stop by the Mothman Theatre on Friday night for One Hour, One Shot, where a group of AP performers showcase how easy and fun Chaosium's Pendragon TTRPG is to play! With Desiquest's Jasmine Bhullar, and Ify Nawadiwe...

I love these t-shirts by Moilleadoir at Redbubble. Across two genres I love. (That's me with award-winning fantasy author and talented Call of Cthulhu writer Jane Routley, at Chaosium Con Australia in 2024. Neither of us was aware what the the other was going to be wearing. Moilleadoir was an...