Knights Onrush is another castle defense game offered for the iPhone and iPod Touch. It contains three difficulty levels at which you can experience the three game modes: Campaign, Endless Siege, and Madness. The Campaign mode contains 12 levels, each with a specific number of days, or waves, that you must suffer in order to unlock the next castle. The Endless Siege mode continues to throw wave after wave at you until you cannot handle any more. Madness simply throws a silly number of enemies at you and asks you to make the best of it.
In the game, there are 11 enemy types against which you must protect yourself including knights, horsemen, bombers, catapults, wizards, and more. Enemies are defended against by flicking them into air, crashing them into ground, blowing them up, freezing them, and boiling them. It also includes defensive structures like Ballista, Boulder Thrower, Fireball, Squasher, Freezer, and Flamethrower. With its all challenges, it includes different landscapes like Forest, Plains, and Desert which gives great playing experience.