Judges Guild were former makers of many adventures for use with AD&D, Traveller, and other systems. The company was started in 1976 as a fan organization by Bob Bledsaw and Bill Owen. At that point, they had a license to produce official AD&D adventures. The license was not renewed in 1981 and they went out of business. In 1999 it restarted on a small scale selling reprints via the web. Beginning in 2003, they teamed up with Necromancer Games to update their AD&D material to the new D20 system and publish it.