 In 1998, following the financial failure of the collectible card game "Mythos", Greg Stafford resigned as Chaosium president and left the company, along with Sandy Petersen (although they both remained shareholders).Chaosium effectively split up into various successor companies, each maintaining its focus on a few of the company's products.Stafford took the rights to his game setting Glorantha, setting up the company Issaries, Inc. to continue publishing this line (later licensing it to Moon Design Publications, along with the game HeroQuest).