iTunes link: Infinity Blade
Infinity Blade was first shown off at the Apple Worldwide Developers Conference in June 2010 as a technical demo called Project Sword. It’s the first game built from the ground up for iOS using Epic’s Unreal Engine 3, which has long been used for 3D games on the current generation of home consoles. As a result, it features the most stunning 3D graphics yet seen on iOS devices.
The game sees you venture from location to location taking part in sword duels with a variety of foes. Much of the game is on-rails, but you do control your sword by swiping on the screen and then using the left and right dodge buttons as well as a central shield button. Nevertheless, the gameplay is fast, addictive and surprisingly deep.