Michael O'Brien is Vice President for Chaosium. His role encompasses creative development, community engagement, licensing, and MGF. Better known in the gaming community as “MOB”, he has been a long-time creative force for RuneQuest and Glorantha. His professional writing and editorial credits extend back to the early 1990s when he was associate editor of the Glorantha magazine Tales of the Reaching Moon. The 1992 RuneQuest release Sun County, which he wrote working with editor Ken "The Rune Czar" Rolston, kicked off what became known as the "RQ Renaissance". Recent credits include Call of Cthulhu the Coloring Book (creator/art direction), Miskatonic University: The Restricted Collection (development), Khan of Khans (development), Terror Australis (editorial), 13th Age Glorantha (art direction), and The Glorantha Sourcebook (contributor).
In mid-2014 MOB returned to Australia after a decade in the Middle East, where a senior leadership role in higher education took him to places as far afield as the United Arab Emirates, Sultanate of Oman, Qatar, India and Somalia. He is now based in his home town of Melbourne.
MOB is a member of Chaosium's Board of Directors.