Call of Duty: Advanced Warfare is a military science fiction first-person shooter video game published by Activision. Sledgehammer Gamesdeveloped the Microsoft Windows, PlayStation 4 and Xbox One versions of the game, while High Moon Studios developed the versions released on PlayStation 3 and Xbox 360, and Raven Software developed the game's multiplayer and the Exo-Zombies mode. Advanced Warfare is Sledgehammer's first Call of Duty title where they are the primary developer, following the supporting work they did on Call of Duty: Modern Warfare 3 alongside Infinity Ward in 2011. The game was released on November 4, 2014, but a special edition titled the Day Zero Edition, which came with bonus in-game content, was released on November 3 for people who pre-ordered the game. 

Before the development of Advanced Warfare, Sledgehammer were originally working on an action-adventure game titled Call of Duty: Fog of War, which was going to be set during the events of the Vietnam War. Development for Advanced Warfare began in late 2011, shortly before the release of Modern Warfare 3. The game became the first entry in the Call of Duty series since Call of Duty 2 to feature a game engine that has had its majority re-written and built from scratch. For the game's single-playercampaign mode, Sledgehammer employed veteran actors Troy Bakerand Kevin Spacey in lead roles. The game's story, featuring a futuristic setting which is set between 2054 and 2061, follows Jack Mitchell of theUnited States Marine Corps and his interactions with Atlas, a private military corporation that sells its services to the highest bidder.