Each level also brings new units and structures to help you fight the troll menace.
Tap existing structures to see how you can upgrade your forces with ever-more powerful improvements! All your towers and units have specific stats: Damage, Fire rate, Damage radius, Damage type, as well as various other features, such as enemy slowdown and Damage Over Time. To defeat these monstrous hordes, you must construct defensive towers and units and learn to wield powerful spells. Royal Defense Build towers, save money, learn spells - don't let the enemy in! Tap anywhere you like for a handy pop-up menu listing all the units and structures you can build in that location.