Call of Duty: Modern Warfare 3 is a first-person shooter video game, developed by Infinity Ward and Sledgehammer Games (Treyarch for the Wii version), with Raven Software having assisted in development and published by Activision.[8] It is the third and final installment in the Modern Warfare series, a direct sequel to 2009's Call of Duty: Modern Warfare 2, and the eighth Call of Duty installment.