Call of Duty: Modern Warfare 3 is a 2011 first-person shooter game developed by Infinity Ward and Sledgehammer Games and published by Activision. The game was released worldwide on November 8, 2011, for Microsoft Windows, the Xbox 360, PlayStation 3, Wii, and OS X. It is the sequel to Call of Duty: Modern Warfare 2 (2009), serving as the third and final installment in the original Modern Warfare trilogy and the eighth Call of Duty installment overall. A separate version for the Nintendo DS was developed by n-Space, while Treyarch developed the game's Wii port. In Japan, Square Enix published the game with a separate subtitled and dubbed version.