Watch Dogs is an action-adventure video game developed by Ubisoft Montreal and published by Ubisoft. It was released worldwide on 27 May 2014 for Microsoft Windows, PlayStation 3, PlayStation 4, Xbox 360, and Xbox One, and a Wii U version was released in November 2014. Set in a fictionalized, free-roam, open world version of Chicago, the single-player story follows hacker Aiden Pearce's search for revenge after the killing of his niece. The game is played from a third-person perspective, and the world is navigated on foot or by vehicle. An online multiplayer mode allows up to eight players to engage in cooperative and competitive gameplay.