Chaosium

Chaosium Inc. is a company based in Hayward, California, United States. It was founded by Greg Stafford on January 1, 1975. The company operates within the wargaming, collectable, and trading card industries.

As an organization, Chaosium is known for creating tabletop role-playing games, board games, and card games. These product offerings are the reason the company is often associated with the aforementioned industries. The company's official name is Chaosium Inc., having its headquarters located in Hayward, California.