After the installation of ufo earth with war games, you can login to the game. Ufo alien coming to earth, and tumbles into the world with the ufo makes a mistake during landing. The aliens land on earth who did the security forces, tank, airplane, helicopter, and various war has been attacked with weapons. By providing control of the security forces conflicted with the aliens in the game, and you need to ensure the alien’s survival. You must use the mouse to aim and fire at enemies. There are extra defensive towers around the spaceship. With the points you’ve earned by extra protection, you can create a shield of defense towers. You can start playing by pressing the play button after the game is loaded. Good games.