Tower Defense Alien War

Tower Defense Alien War is a game where you will fight the waves of evil aliens. There will be more and more aliens in every round. You are just one against them all, and your task is to defend the tower. At any cost, you must not let them through the walls. It would be too dangerous, and it would be a certain death for the people living in the city. Shoot enemies and collect coins. Improve your weapon and unlock more weapons, like rockets, over time. You can upgrade everything, so you become as strong as your enemy. Can you defend the tower? Have fun.