2K Marin is an American and Australian video game developer based in Novato, California and Canberra, Australia. The studio's main focus according to press releases is to develop new intellectual property and co-develop products with other 2K studios.
The Novato studio was spun off from Irrational Games (briefly known as 2K Boston/2K Australia) in 2007, after the release of BioShock. The Canberra studio, 2K Australia, was originally part of Irrational Games. It joined 2K Marin in 2010, upon the announcement of its new XCOM game.