Rocksteady Studios’ critically acclaimed Batman: Arkham City game has expanded to the portable space. Warner Bros. Interactive Entertainment and DC Entertainment have released the Batman: Arkham City Lockdown App for Apple iPad, iPhone and iPod touch platforms for $5.99. The app brings the Batman: Arkham City franchise, one of the most highly acclaimed and bestselling games of 2011, to the App Store for the first time featuring stunning graphics and original combat gameplay created exclusively for Apple devices. 

When it comes to the video game business, one of the thriving revenue stream is downloadable content. Warner Bros. Interactive Entertainmentis the latest game publisher to offer an incentive for gamers to buy all the digital content for a game in one swoop, rather than paying individually as new content is released. Rockstar Games introduced a similar payment structure with LA Noire. Mortal Kombat, which was createdby Ed Boon (see video below), is the first game to offer a season passfor digital content.

Warner Bros. Interactive Entertainment has signed a long-term studio-wide license agreement with Epic Games to use the award-winning Unreal Engine 3 on some of the big games of this decade. The development software will be available for any team developing a Warner-published game across PC, console and mobile platforms. Through 2014 Unreal will be the exclusive game engine used on projects being developed by Rocksteady Studios, which is currently working on Batman: Arkham City, and NetherRealm Studios, the team behind the award-winning Mortal Kombat franchise. Rod Fergusson, executive producer of Epic’s Gears of War 3, talks about the game engine technology in this exclusive video interview.