Call of Duty: Black Ops III is an action-adventure game developed by Treyarch and published by Activision. It is the third game in the Call of Duty series, and is a follow-up to Call of Duty: Black Ops. It was released on November 6, 2014, for the Xbox 360. Call of Duty: Black Ops III is set in the fictional world of Black Ops, and follows the story of players as they play through a series of missions, using various weapons and attachments to defeat enemies and complete objectives. The game features a revised graphics engine, which makes it more realistic, and introduces new game modes, such as co-operative multiplayer and competitive multiplayer.