Tower Defense: Galaxy TD is a game that offers you to be the master of your own destiny. You can build and manage your own defense system against the invasion. The aim is to protect your base and win the battle for the galaxy. You can use a variety of defense weapons such as gun turrets. It is your job to manage and control them so that they can be used to their full potential. 

The game is completely free to play. You can enjoy it without paying anything. You can download it from the Google Play Store. 

Tower Defense: Galaxy TD will let you experience a whole new game.