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alien games
Play free alien games online!
Choose the
alien game
you want to play from the list below. You can sort the games alphabetically, by date or by rating. Almost all of our alien games are playable on full screen. Have fun!
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Raze 2
Arm yourself with a vast array of weapons, equipment, and abilities to fight off the alien forces and save the human race. Or become the enemy and fight for it’s destruction.
Raze 2
The Last Shelter
Protect your base from alien bugs in this excellent tower-defense game. Earn energy ressources for killing enemies and use it to repair and power up your defense between the waves.
The Last Shelter
Bio Zombie
Our hero, Bruce, was a retired soldier who was detained in a sleep chamber on a secret island laboratory.When he regained consciousness, he discovered that he was not alone… Zombies and aliens waited patiently in the shadows for their next meal… Help Bruce get out alive!
Bio Zombie
Energy Invaders
Build an unstoppable army and kill alien scum before they kill you! Energy Invaders is here! Check out this intense action shooter tower defense hybrid of a game! Build towers to gain more energy and kill aliens to upgrade and get stronger! The more upgrades you get, the stronger you become!
Energy Invaders
Back to Alien Party
Why people that were kidnapped by aliens do not remember anything? Is it because aliens throw crazy parties? What should an alien do if he was forgotten on Earth in the full swing of the party? Help the alien return to the alien party using all the means possible in order to overcome the Earth's attraction.
Back to Alien Party
Tripod Attack
Humanity is a virus that occupied this poor planet. They replicate uncontrollably and eventually destroy their environment. Awesome action game inspired by The War of the Worlds. It's time to clean up!
Tripod Attack
Last Command
Alien invasion has begun! You control the last platoon of soldiers that have survived the onslaught! Protect your bases! Once all the bases are destroyed the aliens will control everything! 5 stages, 10 waves each stage, and a big bad alien boss at the end of each stage!
Last Command
Alien Exterminator
You have been sent to a remote planet to exterminate the local populace (the poor aliens). Buy big guns, hire your henchman and go trigger happy.
Alien Exterminator
Hobo 5: Space Brawls
Hobo has been abducted by aliens and finds himself on a UFO in deep space. Aliens have used his DNA to clone him and are in the process of making a hobo army. They also drained Hobo of all of his combo moves, so he has to fight aliens and hobo clones to get them back!
Hobo 5: Space Brawls
Eggstinction
Let's get ready to go Jurassic on these alien invaders. Grab weapons and defend your ground. Move the dino egg through each level without being killed by alien ships or robots.
Eggstinction
Alien Hominid
Your UFO has crash landed, and the FBI is out to get you! Time to take them out!
Alien Hominid
Nocran Space
Stop the Nocran army from reaching planet Earth in this epic top-down shooter.
Nocran Space
Wonderputt
Adventure golf… but with cows, toads, ski slopes, torpedos and a sprinkle of alien abduction for good measure.
Wonderputt
UFO Mania
Abduct the humans and take them from Earth to colonize another planet while avoiding enemy attack, jets and helicopters.
UFO Mania
Space Punk Racer
Race around an alien planet in this high speed racer! Fight off other drivers and earn cash to upgrade your hoverbike! 8 different environments to unlock
Space Punk Racer
Ice Aliens
Help Spaceman Sam blast his way out of an icy hell! After crash landing on some weird ice planet these oddly adorable aliens are trying to kill him. Use your blasto cannon to escape a cold death. Don't forget to upgrade your weapons and build defense towers.
Ice Aliens
Aetherpunk
Using a vast array of weaponry, defend your lab from alien invaders in this ‘defend your base’ type game. Featuring persistent skill level system, over 20 weapons, 6 turrets, beautiful art and professionally developed soundtracks!
Aetherpunk
OPERATION SW23
The war for survival has begun. The human race is threatened. Your mission is to repel the alien forces and defeat the bosses of each level!
OPERATION SW23
Alien Squad
Defend yourself from the aliens that have invaded you starship. Gain badges during your adventure. Scrolling fighting games.
Alien Squad
Aliens Must Die: The Jupiter Wars
Take control of the last starship and defeat endless rounds of alien bad guys, helped out by your co-pilot Annie
Aliens Must Die: The Jupiter Wars
Stark Raving Ted
Year 2012. Alien invaders attacked the Earth. They turn us into zombies. They kill us with their machines. All survivors are hiding in shelters.... except me. My name is Ted. And I'm going to kick their alien asses!
Stark Raving Ted
Alien Raiders
Let us kick aliens ass. Be careful the small pieces.
Alien Raiders
Star Claws
Great physics remover game with new features. Defend Earth from Aliens, using CATS!
Star Claws
Alien Robots
As a tribute to robot fans, we are proudly presents a newest video slot, Alien Robots. This game has a beautiful and playful space age theme with vivid graphics and a Free Spins mode featuring an Expanded Sticky Wild with re-spin. Through these and the game’s stunning symbol animations, players will be immersed in the wonderful world of robots in which they can take small steps toward 30 bet lines or even take a giant leap to 243 bet ways. A fun look, exciting features, and lots of chances to win – Alien Robots has everything for a stellar slot experience.
Alien Robots
Dead Metal
The game features over 30 unique enemy types across 5 races as well as 10 avatar ships with extremely varied weapons. The last mission is a survival mission, see how long you can last as hordes of enemy capital ships come down upon you and get the best score possible. The game saves after each mission completed. Dead Metal is a top down shooter set in space, built off our powerful BT3 game engine. In fact, summing it up as Bubble Tanks in space with Star Forge art would be a pretty good way to describe it. The game was a result of just tinkering with the game engine and seeing what we could do. Once we were flying around launching missiles and blowing stuff up, we agreed- this is awesome.
Dead Metal
Carveola Incident
Strategically place your droids along the map to defend against waves of alien attacks. Don't let the aliens reach your barricade or they'll destroy your turrets. Kill the massive flying alien to prevent regeneration and end each level. Shoot first—then ask questions! Who can you trust in this outerspace fight to the finish?
Carveola Incident
Space Invaders
Space Invaders is one of the earliest shooting games and the aim is to defeat waves of aliens with a laser cannon to earn as many points as possible.
Space Invaders
Clash N Slash
Defeat impudent aliens all around galaxy! Non-stop space shooter for all ages!
Clash N Slash
Alien Hill
Alien Hill is a top down shooter. Alien Hill is based on a deserted planet waiting to be colonized. You play the role of a mercenary (Jack), who is assigned to the planet to hold a key position for planetary terra-forming.
Alien Hill
Alien Police of the Chronic Fellow
New mellow logic puzzle game. There are 35 levels that get progressively more difficult. You may not get the mechanism right away from reading the instructions, but test out the first level and you’ll see how easy it is to play.
Alien Police of the Chronic Fellow
The Life Ark
In there beginning there was nothing, just dust and empty space. In time, over millions of years this dust joined to form celestial objects in the vast darkness. But something was missing... life. Beings from another dimension found this dead universe and brought life with them to one lonely planet. Your objective is to continue the work of the aliens and build an inter-dimensional ark to spread life in this world. Solve puzzles, click click click and see where that gets you. Good luck!
The Life Ark
Starfighter: Defender
Defend either an alien or human space station with your defence turret. Use a laser cannon and an array of secondary weapons.
Starfighter: Defender
Hallows Revenge
You must defend Earth against the invading fleet of Hallow, a remote planet where Halloween is the normal way of life! The citizens of Hallow have constructed a fleet of space worthy vessels that are on their way to invade Earth. You, an experimental space fighter test pilot, must destroy them before it's too late. There are five waves of enemies that you must destroy.
Hallows Revenge
ET Smash
You're an evil alien bent on the destruction of humans. After travelling for millennia you finally arrive on planet Earth and set straight to work. Your objective is to kill, destroy and damage as much of a city as possible before the pitiful humans overcome you!
ET Smash
Mission to Mars
Alien on a mission. Go get those gems. Find your way out of every level.
Mission to Mars
Star Fire
You must defend Earth against waves of alien ships. They have come from a vast area of space known as "Quari". Their mission is to expand their territory and conquer mineral rich planets. This game is a reskinning/modification of Hallows Revenge to make it more suitable all year round! Bonus gameplay mode added, endless mode!
Star Fire
The Green
A fast paced action/fighting game set in space. Upgrade your skills and kill as many enemies as you can.
The Green
Xmas Meltdown: Santa VS Aliens
It’s Xmas and aliens are coming to conquer the earth! Help Santa to save our planet and the Xmas!
Xmas Meltdown: Santa VS Aliens
Green Terror
Shooter with realistic phisics and destruction effects.
Green Terror
Alien Scope
Shoot aliens to protect your gem miners on distant planets. When the miners collect their gems, shoot the gems from their hands. Collect enough gems to get to the next level.
Alien Scope
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