A huge campaign across 26 unique, multi-screen landscapes, each also playable in Endless mode. The aliens fight back with the ability to damage, disable and destroy towers. How will you choose to counter them? Call in support from the skies with the Sentinel's trademark ship weapons. Unleash drones, nukes and more from your new improved Stronghold. Control Commander heroes to back up your defenses. Earn experience and level up to gain powerful new abilities. Pick your loadout from an extensive
