Select your archer from one of the three realms. Focus your bow at the approaching foes by dragging your cursor across the screen. Press to charge your shot, then let go to let fly your arrow. Timing is crucial as enemies charge closer to your castle. Improve your champion's abilities between waves to boost your offense against more formidable foes. Survive as many levels as possible to earn a high score. Strategy in upgrading your archer and timing of your shots are key to protecting your castle.