FASA Corporation was an American publisher of roleplaying games, wargames and board games between 1980 and 2001. Originally the name FASA was an acronym for "Freedonian Aeronautics and Space Administration", a joking allusion to the Marx Brothers film Duck Soup. This tongue-in-cheek attitude was carried over in humorous self-references in its games. For example, in Shadowrun, a tactical nuclear device was detonated near FASA's offices at 1026 W. Van Buren St in Chicago, Illinois.
FASA first appeared as a Traveller licensee, producing supplements for that GDW roleplaying game, especially the work of the Keith Brothers. The company went on to establish itself as major gaming company with the publication of the first licensed Star Trek RPG, then several successful original games. Noteworthy lines included BattleTech and Shadowrun. Their Star Trek roleplaying supplements and tactical ship game enjoyed popularity outside the wargaming community since, at the time, official descriptions of the Star Trek universe were not common, and the gaming supplements offered details fans craved. The highly successful BattleTech line led to a series of video games, some of the first virtual reality gaming suites, called Virtual World (created by a subdivision of the company known at the time of development as ESP, an acronym for "Extremely Secret Project") and a Saturday-morning animated TV series.