Crush the Castle Games

In Crush the Castle you tap the medieval siege weapon once to drop the counter weight of the trebuchet, swinging a lever and the sling affixed to it in a forward arc. A second tap on the screen releases the payload, catapulting it across the screen and, hopefully, into the castle. The object is to kill all of the castle's inhabitants from serfs and knights to the king and queen. Using the sling device to launch your attack is oddly satisfying and surprisingly hard to master.