Irrational Games is a development studio founded by Ken Levine, Jon Chey and Robert Fermier in 1997. They have studios in Boston, MA (the original studio) and Canberra, Australia (2000), and developed titles such as System Shock 2, Freedom Force and Freedom Force vs The 3rd Reich, Tribes: Vengeance, and SWAT 4 and SWAT 4: The Stetchkov Syndicate.
On 9th January 2006, the company was acquired by Take-Two Interactive. On 10th August 2007, Take-Two Interactive announced that the US and Australian offices of the company had been renamed 2K Boston and 2K Australia respectively. From that moment the name Irrational Games is no longer used.