While waiting to get their hands on Epic Games’ (Gears of War, Unreal Tournament) iOS only game - Project Sword - Apple gamers will be able to explore just how well the Unreal Engine runs on their iOS device. Compatible with iPhone 4 and 3GS, 3rd and 4th gen iPod touch, and the iPad; the Unreal Engine tech demo, dubbed Epic Citadel, lets gamers explore a castle interface with all the bells and whistles of the Unreal Engine. Such as: bump offset mapping, real time lighting, texture mapping, global illumination, and more. Epic citadel was created in eight weeks and can be downloaded for free from the App Store.

More screenshots after the jump.