Call of Duty: Modern Warfare 3 (stylized as Call of Duty: MW3) is a 2011 first-person shooter video game, developed by Infinity Ward and Sledgehammer Games (Treyarch for the Wii version), with development assistance from Raven Software, and published by Activision. It is the third installment in the Modern Warfare saga, a direct sequel to 2009's Call of Duty: Modern Warfare 2, and the eighth Call of Duty installment.