Irrational Games, LLC  known as 2K Boston between 2007 and 2009 was an American video game developer founded in 1997 by three former employees of Looking Glass Studios Ken Levine, Jonathan Chey, and Robert Fermier. The studio was acquired by Take-Two Interactive in 2006. The studio was known for its games System Shock 2, Freedom Force, SWAT 4, and most notably two of the games in the BioShock series. Following the release of BioShock Infinite, Levine opted to significantly restructure the studio from around 90 to 15 employees and focus more on narrative games. In 2017, the studio announced that it had been rebranded as Ghost Story Games and considered a fresh start from the original Irrational name, though still operating at the same business subsidiary under Take-Two.