Paizo produce a number of games the most popular being The Pathfinder Roleplaying Game. Paizo modified, updated, maintained, and published the 3.5 System Reference Document (under Wizards of the Coast's Open Gaming License).
Paizo Publishing

Paizo produce a number of games the most popular being The Pathfinder Roleplaying Game. Paizo modified, updated, maintained, and published the 3.5 System Reference Document (under Wizards of the Coast's Open Gaming License).