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Online alien Games
Graviton X Game

Plays: 26499
Category: Action
You are one of the greatest pilots in the intergalactic armada. Extra-dimensional alien beings have invaded the cosmos and are wreaking havoc on all peaceful planets in the federation. Most of the armada's ships have been destroyed by the hoards of hostile aliens. You are the armada's last hope. Good luck soldier!
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Earth Destroyer Game

Plays: 22770
Category: Adventure
You as an alien are ordered to seek and destroy the human race! Good luck.
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Alien Invasion Game

Plays: 13992
Category: Action
You as an alien have invaded earth, Use your energy blast in order to take over the planet earth Aka your dinner, now get busy with it!
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Battle of The Universe Game

Plays: 11583
Category: Adventure
Destroy the opposing aliens that have began destroying earth! Make sure they pay for their insulting attack!
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Alien Invasion 2 Game

Plays: 11484
Category: Shooting
You are the greatest alien pilot in the galaxy. Your mission is to destroy all human military aircrafts to prepare for the grand invasion!
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Fist Pumpin Game

Plays: 11242
Category: Adventure
While walking home from the nightclub, Louie finds the city taken over by aliens! Help Louie defeat the alien party crashers! Hop on enemies and combo for the win!
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Phoenix Fighter Game

Plays: 11176
Category: Action
You as a fire alien must take out the opposing aliens before they find the source of your planets power!
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Defend The Tree Ship Game

Plays: 9185
Category: Shooting
Defend the treeship from the evil aliens!
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Bugarach 2012 Game

Plays: 8998
Category: Shooting
Defend Earth from alien invaders in the town of Bugarach in 2012! For freedom! Unite Earthlings!
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Shadow Alien Invasion Game

Plays: 8668
Category: Action
Shadow alien invaders are coming for Earth. The military has selected from a group of top military test pilots to lead the first line of defense against the alien attack. You have been strapped into a prototype starfighter which has just been launched from Earth's rickety space station. Defend Earth or die trying!
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Lava Alien Assault Game

Plays: 7931
Category: Adventure
Aliens from the sun have planned an attack on earth, Make sure that they do not succeed, Dodge fire balls and alien ships while defending the planet earth.
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Terra Defence League Game

Plays: 6919
Category: Shooting
You are part of an elite group of space cadets that must defend Terra from alien attacks!
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Defend The World Game

Plays: 5852
Category: Shooting
Defend the world from alien invasion. It's down to you to save the world from the alien attack, work your way through the levels destroying alien ships and scoring as amny point as possible. Challenge your frineds to beat your high score to see who is the best defender of the world!
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Mech Wars 5000 Game

Plays: 5181
Category: Shooting
You have just landed on a desert planet to do a recon mission for the high command. Suddenly you are set upon by a horde of alien mechs. Defend yourself and escape to warn the high command of the danger. Don't let us down marine!
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dog fight Game

Plays: 4862
Category: Shooting
you must take out the alien ships invading are planet
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Omnitrix Unleashed Game

Plays: 33743
Category: Adventure Games
Now that the security guards have been hypnotized, you can use the Omnitrix and help Ben and his friends fight the remaining enemies!
The Slob Game

Plays: 16542
Category: Adventure Games
The world is a psychedelic alien planet, run and jump skill game with personable alien plants, strange creatures and a slug like character.
alien fury Game

Plays: 15356
Category: Strategy Games
Defense game with a lot of stages, weapons,armors,special power , enemies and blood splaters. Excellent graphics
Zott Game

Plays: 14767
Category: Shooting Games
Zott is a fast paced top down space shooter. Make your way though six levels of aliens and increrasing difficulty. Reach the final battle and save the universe by defeating the empire of Zott. Collect blue powerups to increase you health, shields, weapons, and lives. Beat the highest score by collecting the most yellow powerups.
Blue Knight Game

Plays: 11816
Category: Adventure Games
Explore an alien planet in a mission to clear it of enemy threats, ready for a new human colony. Pixel rich game with cool twists.

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Tips: For a scope shot game you can go to Gameplay and enable Ghost to remove player/enemy collisions. Use invincible if you don't want enemy fire to hit your scope either.