This week only (Thanksgiving/Black Friday week), you can get Infinity Blade for iPhone for the low, low price of absolutely free. It’s an awesome game, and it definitely deserves a download.
It was the first iPhone game to make use of Unreal Engine. It’s developed by Chair Entertainment, a subsidiary of Epic Games. Normally $5.99, this is quite a discount. The game is a bit older (2010) but it’s still very fun. If you ever played Punch-Out!! for the NES, SNES or Wii, this game is pretty similar in gameplay style. The difference here is that you are fighting armored knights and monsters.