Alien games online are a collection of free UFO alien games categorized into defense, shooting, space and alien strategy games. Battle against aliens, abduct earthlings, and fly a spaceship!
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Alien games online are games with UFO and extraterrestrial, usually hostile, life. It is the essence of the unknown that drove the game developers to portray aliens and outer space colonization, starting from the classic space invaders to more sophisticated alien strategy and alien shooting games.
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