Best alien games for free download by popularity

The Arcade Park collection is meant to revive the legendary games of the past. It includes the following games: Arcade Ball, Asteroids, Rushman, Digger, Gold Hunter, Galaxy Invaders, as well as military games Real Tanx and Riverside Assault!

Defensor is a superior quality, horizontally-scrolling, shoot-them-up. Protect the humanoids from abduction and more. Destroy the multiple alien bug types, all with individual characteristics, collect bonuses and power-ups, & battle the mother alien.

Sprill and Ritchie are back in an all-new Hidden Object game that will tickle your funny bone as much as it teases your brain!

Save the realms of Sylia in this exciting adventure game!

Clash'N Slash: Worlds Away: a sequel to our highly addictive arcade space shooter. Players must defend the planet from aliens with a variety of space based weapons and power-ups.

Drop colored blocks and try to form lines that will react and disappear. Use your tools wisely to get the high score!

You have to liberate your planet system from alien invasion using your spacefighter. Player can obtain various extra-weapons and special abilities by destroying enemy cyborgs, fighters and motherships. Each planet has its own cyborgs and bosses.

Help Selena rescue her parents by competing against the evil robot 'Seth' - in this fiendish brain bending puzzle game.

Extraterrestrials have arrived! Fortunately, they’re not here to invade, they just want to observe. Can you find them all?

Travel through the cosmos, visit strange and wonderful alien worlds, encounter fantastical and bizarre creatures. Space Mahjong has 7 different types of Mah Jong gameplay to choose from, including Crossed Lines.

Shoot aliens in this action shooting game: Fight 45 arcade style enemies in 15 alien empires and 135 levels. Shoot whatever moves (or doesn't move for that matter), pick up in-game powerups and unlock stronger ships.

This is one of the best Minesweeper game available under Smartphone and Pocket PC. Go hunting mines, fruit worms and aliens in colored backgrounds and amazing environments. Three difficulty level and four different themes are waiting for you.

Crystal Power is an exciting and challenging puzzle game where you fill energy tubes to power your spaceship home. Energy tubes light and pulsate in brilliant colors when the right combinations of power crystals are placed.

Award-winning asteroid-blasting arcade game which fuses old-school gameplay with new-school cool. Astrogeddon features fully rendered 3D graphics, 360-degrees freedom of movement and more than 20 types of enemy spacecraft, spread over 100 levels.

A classic real time strategy game dealing with galactic warfare and alien invasion. The game features massive battles in space, fast creation of armies and, finally, a good sense of humor.

Cramgene is a unique puzzle game inspired by today's advances in genetic science. One to 2 players compete through rounds, deciphering creature DNA to create specific meals for bizarre pets.

Help! Aliens! is our new 3D action adventure game for your PC, laptop, notepad or netbook set on an alien spaceship. You are a secret agent sent to rescue the President from the invaders. Your mission is simple: Kill them all!!!

The world has been invaded by an alien race of machine warriors. You are an elite soldier, controlling an advanced military hovercraft. The mission is simple, but tough - search and destroy all the alien Machines and reclaim Earth.

In this amazing old-school platform game you will guide Dylo, a cool dino who gets involved into the risky adventure of saving his prehistoric homeland from outer space invaders. Help him to take down the evil martians and their twisted plans!