In the year 2175, the world is no longer suitable for human life. The earth is too small and too poor.

In order to continue human civilization, we move to a new planet. On the way to our new home, we are attacked by a group of enemies.

The enemies are so strong that we are forced to fight them. We build up a cannon army and appoint you as the commander.

Upgrade your cannon tower and fight for your life!

Can human beings survive this attack?

On the battlefield, you will face various enemies. You will need to shoot them down with your powerful weapons.