December 8th, 2011
(as of 2012-12-04 19:39:48 PST)Usually ships in 1-2 business daysPlatform: Windows Vista, Windows 7, Windows XPReleased: 2011-12-08
![Batman Arkham City Nightwing DLC [Download]](http://ecx.images-amazon.com/images/I/4140Stsi6oL._SL450_.jpg "Batman Arkham City Nightwing DLC [Download]")