Automated defense system to activate, detect the enemy, open fire! It's a tower defense game with an exquisite style. This is a high-tech era. Wars no longer require real people to participate, and everything can be automated! At this time, alien monsters are invading the earth, quickly activate the automated defense system to defend against the aliens! In the game, you only need to place all the turrets in a fixed position, and then collect gold coins to upgrade the turrets!