Call of Duty: Modern Warfare 3 is a 2011 first-person shooter video game jointly developed by Infinity Ward and Sledgehammer Games and published by Activision. The game was released worldwide in November 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.