UFO 

In the UFO alien screensaver get ready for a showdown between space creatures and mankind in the Aliens Among Us: UFO alien screensaver. Your perspective is from the surface of an alien planet, with the Earth in full view in the night sky.
ufo alien spaceship flying saucer

Alien Dreams Screensaver 

Numerous alien space ships, fly, swoop and do amazing maneuvers above an alien planet. Features: Over 30 different screens of animation, Each screens animation patterns of movement are totaly random, Order of screens is random.
alien dreams screensaver screensaver space screensaver