

Critics also praised the swipe-based combat system, but split opinions on the cyclical gameplay as either addictive or repetitive. Reviews praised the graphics and compared the mobile game favorably to console games. It made US$1.6 million in its first four days, and over US$23 million by the end of 2011.

Infinity Blade was the fastest-grossing app in the history of iOS upon its release. The game received four free expansions that added new equipment, endings, and game modes. Infinity Blade was intended to demonstrate the new iOS version of the Unreal Engine, and to combine the combat of Karateka and Prince of Persia with the loneliness of Shadow of the Colossus.

The game was developed by a team of twelve people, who took two months to make a playable demo and three more to finish the game. Upon defeat, the player restarts the game as the character's descendant with the same items and experience level. When in battle, players swipe the screen to attack and parry, and tap the screen to dodge and block enemy attacks. In the game, the unnamed player character fights a series of one-on-one battles in a derelict castle to face the immortal God King. It was the first iOS video game to run on the Unreal Engine. Infinity Blade was an action role-playing game developed by Chair Entertainment and Epic Games and released through the Apple App Store on December 9, 2010.
