Welcome to the Idle Tower Defense world of Merge Cannons!
Click your Level 1 Cannon to the other to merge a Level 2 Cannon.
Merge your cannons to a higher level and move your cannons to the slots fight against the UFOs of aliens.
It will be a challenge for you when your rank get higher.
The Tower Defense game (TD) is endless - fight against infinite number of waves for as long as you can!
And we will offer more exciting FREE events for you soon！