Today’s free iPhone app at FreeAppADay.com is Crush the Castle from Armor Games. Also available to play as a flash game on the Armor Games website, Crush the Castle places you in the role of castle crusher, ordered by the King to eliminate all resistance to his kingdom in order to survive.
In order to do this, you’ll take command of a trebuchet, and with a simple tap will be able to start the machine in motion. Tap again, and the boulder its holding will fly out and (hopefully) destroy some of the enemy castle on the other side of the playing field. The quicker you release the boulder, the higher it will fly, and vice versa.
You have a limited number of shots per castle, and your goal is to kill those inside it, along with bringing the castle to the ground. There are 90 levels to conquer here, along with more than 10 different ammo types. As you go, you’ll be able to earn achievement medals based on your progress.
If you’d like to get a taste for the game before you download the iPhone version, you can play the PC version for free here.