Merge Cannon Defense 3D

By 2175, Earth is no longer a sustainable planet for human habitat. Global warming is irreversible and all natural resources have been depleted. For survival of our species , we must move to a new viable planet.
However, in our travels to our second home, unknown enemies make a surprise attacks on us. Like a scene out of a cyberpunk sci-fi film, you get trapped there.
For the rebirth of human civilization, we fight back! Leaders on board organize a Cannon Army and appoint you as the Chief Commander. Upgrade your Cannon Tower and fight for our lives!
Can humans win this battle for survival?
Commander, you're our hero and only hope, now!
Features:
● Unlock dozens of cannons in your armory.
● Merge cannons to gain more advanced artillery.
● Defend against increasingly powerful waves of enemies.
● Automatically collect coins.

How 'bout some actions, Commander! We are here 24/7 waiting for your orders!
Cannon's charging up! Let's fight together and make an oasis of hope!