We've heard rumours about a multiplayer mode in Rocksteady's upcoming Batman: Arkham City, but now the developer is putting those down. In an interview with IGN, game director Sefton Hill said that "Batman: Arkham City is a 'single-player only' experience."
"With the game now coming to the final stages, I can honestly say it would not have been possible to deliver Arkham City the way we wanted to if we'd have added multiplayer.
So it might not be the fashionable choice, it might not get us an extra tick on the box, but we are convinced, and we hope that gamers will agree when they get to play the finished game, that we have made the right decision."