Zion Tower Defense. In this interesting game you will have to protect Zion, a huge underground city with several levels. This is the last city remained inhabited with people; the others were captured by machine armies. They have found the way to Zion; the number of machines intended to destroy it constantly grows. Defend it or the humanity will disappear. Each wave of enemies is a peculiar puzzle and you have to solve it, using tactics and big guns! Restore the damaged towers and upgrade them after the each attack of the robots. Unlock 18 achievements.

Operating System: Android Cupcake (1.5) - Nougat Marshmallow (7.0) or later