A free app for Android, by Cool Bean Games Studio.

Build your own base, raise an army, and lead your troops to victory in the war of the superpowers.

This new strategy war simulator game puts you in control of a massive war machine. In this free real-time strategy (RTS) game, you will command a large army that will fight on the battlefield. As the commander-in-chief of the army, you will be in charge of building, recruiting, and training troops. You will also be in charge of all military operations, such as building your base, raising an army, and commanding troops in battle. 

The gameplay is very simple and easy to learn, and the gameplay is completely free to play.