A free app for Android, by Artem Kotov.

The most-loved and addictive tower defense game are back with a brand-new set of challenges and enemies.

With more than 40 exciting missions, various challenging maps, and endless fun, you can enjoy the most addictive tower defense gameplay with Defense Zone 3 HD.

Defend against wave after wave of increasingly difficult enemies. Enjoy the beautiful graphics, amazing music, and fun sound effects. Control your turrets with the arrow keys, spacebar, or use the joystick. Defend against all enemies, including turrets, airplanes, helicopters, and tanks.

As a seasoned commander, you will enjoy the merciless, intense battles where the countdown where even a fraction of a second is vital to success. Everything hinges on your ability to choose and arrange your turrets wisely.