Gotham city has some impostors running around in it trying to help out the Batman or helping out Jokers side of the battle. In this multiplayer first person shooter that aligns you on one side or another as a vigilante.
The game will be all about the craziness with a lot of customization as well a leveling up system that goes as high as 1000, with a crazy number of upgrades and unlocks.
The beta will be coming in December of 2011 while the downloadable only title will be released in January of 2012 on the PC, Xbox 360 and Ps3.
If you want to take part in the beta head over to their website.