Build your city block by block. Place, pack and merge buildings onto the grid to grow your economy and defense. Expand your city's borders above and below the ground to increase your damage and resources gained.
Watch your defenses cut down waves of enemies and turn the tides of combat with the commander's powerful ability. Combine turrets with various effects to maximize your city's defensive capabilities.
Find your way to play by combining different buildings into your own unique strategy. Face growing hordes of enemies and take down their boss to claim a piece of the wasteland for yourself.
