Anomaly Warzone Earth takes a different tack with the tower defense genre by having you play as the invading force, completing missions on a (somewhat) fixed path against a number of deadly turrets. Your heavily armored squad of vehicles and units has guns of its own, but as with every tower defense game, the more turrets you're up against, the harder it will be to stay healthy and reach your goal.
Fortunately, as you progress through the game, you'll gain abilities that will repair your vehicles and make it harder for enemies to hit you. You'll be able to deploy special weapons that are strong against specific enemy types, making it crucial to select your unit loadout wisely. You'll also have to select your path; Anomaly Warzone Earth has a tactical screen you'll visit before each quest to design a path through several city blocks of strategically placed turrets. Often the quest will require that you take out specific enemy types, so you'll need to design your path to maximize damage against them. To keep you well fortified, a drop ship occasionally drops health and other abilities that you'll need to tap to add to your arsenal.
Overall, Anomaly Warzone Earth is a very well-made and challenging game that turns traditional tower defense on its head. With excellent graphics and a unique take on the game genre, this title will keep you coming back to try new strategies against increasingly difficult enemies.