Tower defense zone

Upgradeable weapons In Tower Defense Zone, you must defend a distant planet from menacing space monsters. Strategically place defensive turrets around your base to create an impenetrable defense. Utilize automatic turrets, laser guns, rocket launchers, and other weapons to stop the enemy's advance. Upgrade your towers during battle and unlock new weapons to increase your chances of success. Enjoy different game modes and several difficulty levels, as well as high tech towers and hordes of space enemies.