Battle the invading forces by placing and upgrading turrets. Hot keys [1 through 0] to quickly select purchasable towers. Press [C] or select another tower to cancel a purchase.
Purchase defenders and spells to attack incoming creeps. When enemy invaders reach the end of the map you lose 10 health points. Hold the spacebar and move the mouse to scroll the map. Dig for treasure and potions with the shovel item. Find treasures to try your luck with the "Ultimate Slots" machine at the end of each level!
Defend the main building from incoming enemy units. The enemy will try the approach from different sides, so you must ensure that your defenses do not leave room for any units to slip past.
Defend the Power Core. Gather 'material' from defeated enemies to buy upgrades to your base and your defense vehicle. [W,A,S,D] or Arrow Keys to move. Mouse to aim. Left Mouse Button to shoot. Spacebar: speed boost,