Everyone loves playing as a superhero and there are quite a few iOS games out there that let you play as your favorite. But there aren't too many that let you play one of your favorites for the cost of nothing!

Captain America: Sentinel of Liberty is now available for free (for a limited time), in the App Store. Here is the official game description:

Sentinel of Liberty features stunning HD graphics optimized for Retina Displays! Play as the Super Soldier Captain America in this epic action game. As WWII rages, Red Skull is leading HYDRA as they build super weapons that will turn the tide of the war. To make matters worse, Falsworth, Dum Dum Dugan and Bucky have been captured. Go behind enemy lines to rescue them and put an end to the sinister plot. Use your unbreakable shield to battle, block, and maneuver your way on what seems like a suicide mission.

They just did a new update so now's a perfect time to pick this game up if you've been on the fence about it! Who doesn't enjoy throwing a shield in a Nazi's face?

Click here to download Captain America: Sentinel of Liberty, free for a limited time!