You will control an army of power hungry invaders. You will invade different territories in search of more energy sources to power up your entire army of invaders. Click on specific soldiers and move them towards monsters to attack them or click and drag a window over a few soldiers and release then click the position you would like them to move into and all of them will charge to that placement. As you move along the battlefield you need to build towers from your energy source to the one at the end of the battle. These tower you build will also help defend your soldiers because they will send out energy zaps and attack the monsters.