Gotham City Impostors is an upcoming first-person shooter multilayer only video game set in the universe of DC Comics' Batman. Developed by Monolith Productions and published by Warner Bros. Interactive Entertainment, the downloadable game will be played from the perspective of two teams each trying to kill the other one with people dressed like Batman and the other with people dressed like his archenemy, The Joker.It is set to be released on Xbox Live Arcade, the PlayStation Network and Microsoft Windows on January 10, 2012.