Remember the Flash game, Defend Your Castle? In it, stickmen would attack your castle, and you would use the mouse to fling them away, causing hilariously entertaining stickman devastation. Not surprisingly, the concept became a popular game on the iPhone, called Stick Wars. It was the number one gaming app for quite a while, and the de facto King of Castle Defense. Until now. Chillingo's Knights Onrush is, without a doubt, the best castle defense game currently on the market.