Irrational Games was an American video game developer which started in 1997 formed from three former Looking Glass Studios employees: Ken Levine, Jonathan Chey, and Robert Fermier. Take-Two Interactive acquired them in 2006. They were best known for two of the games in the BioShock series, as well as System Shock 2, Tribes: Vengeance, Freedom Force, and SWAT 4. Following the release of BioShock Infinite, Levine left the AAA industry in 2014 to work on smaller, narrative games. He started a smaller studio within Take-Two with some Irrational employees, later named Ghost Story Games, while Take-Two closed down Irrational Games.
- Founded
- 1997
- Country
- United States
- Parent company
- Take-Two Interactive
Games tracked5since Sep 2026
On sale now5up to −80%
Released2005–2025
Steam playersVery Positiveon 2 of 3 games3,137 reviews
All 5 games developed by Irrational Games
On sale first
Publishers of games developed by Irrational Games
Named as publisher on Irrational Games games we track.