Best alien games for free download by popularity

Destroy the solar panels the invading aliens use as their source of energy, and save the world in Tuber Versus the Aliens!

Test your piloting skills as you overcome the Star Hulk Icarus's decaying gravity fields. Rotate, thrust and shoot your way through 80 sectors, collecting riches, battling aliens and unlocking the way to freedom.

DarkSide is a sci-fi based shoot'em'up in which you pilot your way around 100's of massive asteroids. Fly in and out of their dark sides as you battle a host of alien hostiles. Watch out for orbiting chunks of rock!

Experience total control over your ship and destiny in this high-speed shooting game where unlimited ammo is just about enough. Shoot your way through hundreds of waves of alien aggression. Save mankind in an epic adventure of top-scrolling action.

Software Amusements the original creators and developers of Dweebs; now bring you those super cute furry dudes in this sequel... Dweebs 2: The New Breed!

Pumpkin Games' tribute to Eugene Jarvis's seminal arcade shooter Defender features all the ingredients that made that game a classic. Alien Abduction is the game shoot 'em up fans have been waiting for.

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.

BreakQuest is the total remake of classic Breakout. In addition to the energizing gameplay, the game boasts a superior physics concept, advanced collision system, vibrant graphics and cool sound. Enjoy 100 action-packed levels. No place for boredom.

The year is 2056 and an army of evil space aliens is plundering the earth. Luckily, a hero has come forward: a hero of power, of stature, of pure meteoric strength. Yes, puny humans, your salvation is at hand! A Mighty Rodent is here!

Blast aliens and save the universe in an all new sequel to one of the most highly praised games of this year. Xeno Assault II will capture your mind with breath taking game play and heart pounding arcade action!

You've never had so many types of weapons with which to destroy your enemy! Missiles are just light fun for kids,but here you'll get mines, lasers, nuclear bombs, piranha, lightning, insulators, infectors, ball lightning, homing lasers and more!

Save the Kitten Sanctuary from evil alien abductors! Use your Match 3 skills to destroy the aliens` evil traps and free kitties!

Aliens are invading and you're the last hope for humanity! Your mission, should you accept it, is to save the world!

Strap in and prepare for the most intense battle! Protector puts you in the hot seat to defend mankind against an alien force!

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

Rescue adorable puppies, decorate their surroundings, and play with them to create your very own Puppy Sanctuary!

Jane’s wheat cultivation has been tampered with in the midst of a thunderstorm. Help her solve The Crop Circles Mystery!

Rotate, thrust and shoot your way through 80 sectors, collecting gems, battling aliens and unlocking the way to freedom.

A hostile alien fleet threatens humankind. Your mission? Collect the pieces of the top secret weapon that can destroy them all.

Chewsters are little aliens that have come to invade the Earth. Help Captain Don defend the planet from invasion!