"In 1978 Chaosium published Steve Perrin's roleplaying game "RuneQuest", set in Stafford's mythic fantasy setting Glorantha, following up with a second edition in 1980 and various supplements over the next six years.In 1980, the company officially incorporated as Chaosium Inc. That year, Stafford and Lynn Willis simplified the RuneQuest rules into the 16-page Basic Role-Playing (BRP).