The goal here isn't just survival; it's building the perfect slaughterhouse. There are no classic health bars or game over screens, but every zombie that crosses the border means your precious loot burning away. Plan your tactical grid wisely and watch the system work flawlessly.

Defend your central base against 360-degree onslaughts, or anchor your line to the left wall in Canyon mode and face incoming waves in a single chokepoint lane. Define the rules of engagement across diverse map themes and atmospheres.

Kill faster, earn more. If you want to speed up your progression, mutate the zombies; they will come back stronger, but drop significantly more loot.

Connect 12 unique towers via the Reactor to create exactly 144 distinct variations! Design your ultimate killing machine with acid, fire, rocket, ice, and sound combinations.

When your defense is ready, sign contracts to summon Zombie Bosses. Let your autonomous towers tear them apart in seconds while you just collect rare DNA and permanently upgrade your arsenal.