Your mission in this castle defense game is to strategically place towers and structures on the plain and kill enemies that are trying to destroy your castle. Use YOUR MOUSE to click on tower or structure to select it and then click anywhere but on the path to place it. You can place multiple of the same tower or structure without re-selecting it from the menu by holding the SHIFT KEY. There are three level types: Kill all Enemies, Erect a Landmark, and Survive. Pay attention to the objectives, so you don't get chumpitized. Have fun!