Blog
We played a game of Credo at the site of the actual first Council of Nicaea, 1701 years later...
Posted by Michael O'Brien on 10th Jun 2026
Chaosium's MOB and Nick Brooke are in Turkey for Horror in the Cisterns, a Call of Cthulhu actual play show taking place in Istanbul's ancient 5th century Cistern of Theodosius on Saturday night.
But earlier this week they travelled to the city of Iznik, formerly known as Nicaea. There in AD
… read more
Chaosium welcomes Kat Clay to the team
Posted by Michael O'Brien on 19th May 2026
Chaosium welcomes Kat Clay as part of our editiorial team. For the past several months Kat's been working with Mike Mason and the Call of Cthulhu team on various projects, and with Susan O'Brien on fiction and legacy board game projects including Encyclopedia Cthuliana and Credo.
Kat Clay is an ENN
… read more
Today, on the 1700th anniversary of the Council of Nicaea, we announce the return of Credo!
Posted by Michael O'Brien on 20th May 2025
ANNO DOMINI 325: Under the watchful eye of the newly converted Emperor, Bishops from throughout the Roman Empire gather together at the city of Nicaea...
Today, May 20th, is the 1700th anniversary of the Council of Nicaea. A fitting date to announce the long awaited return of a classic Chaosium g
… read more
Chaosium Con Spotlight: Community content in hardback and Credo!
Posted by Michael O'Brien on 12th Apr 2023
Our community ambassadors Nick and Bridgett look forward to showing off this magnificent collection of Miskatonic Repository and Jonstown Compendium print titles at Chaosium Con this weekend!
These independently-created Call of Cthulhu and RuneQuest books are all going to be av
… read more