Top Free Online Games tagged Alien

It's the middle of the 15th century, Earth was invaded by hostile aliens eager to take over the world. You as a knight, vowed to defend your land to any invaders and kill those who will resist. With just your bow and arrow for you long range weapon and a shield and a sword for your melee, you have to defeat all the aliens and destroy their mothership!

Alien Survival 2022 is a third-person-shooter on a mission to eradicate the aliens. Your mission is to destroy enemy aliens! With your advanced weapons you are tasked to search and destroy all the lurking aliens in the forest. Use your vehicle to locate the enemies quickly and smash them. Choose your gun and shoot all the alien before the time runs out. Enjoy playing this game here at Y8.com!

Pixel Dino is a simple pixel arcade shooter. Time to get out of your bed. Your home is under attack! Go out and defend your home by shooting the invaders!

Find Alien 3D fun game to play. Go through the people around and find the alien who is hiding. Shoot the alien with the gun. The imposters are the aliens hiding among us. They look like normal people. Your goal is to kill all the aliens in the imposter game. Play more games only on y8.com

The Last Man is a top-down survival horror game to escape from a facility infested by aliens. Find and collect all the weapons and gears on your way. Can you find a way out from these scary and dark place? Don't let your guard down because these aliens can cut your head off with a single hit! How long can you stay alive? Have fun playing this action game here at Y8.com!

In Shadowhawks Squadron, you take the place of a pilot of an elite squadron charged with defending the human colonies which are attacked by an unknown extraterrestrial race... Shadowhawks Squadron is a great 3-dimensional space shooter with nice graphics. You can choose to follow the campaign mode and complete the different missions to save humanity, or you can switch to survival mode, where, as the name suggests, you will have to survive the enemy waves for as long as possible. Have fun!

In this futuristic game, you play as the best space marine, sent on a distant alien space station where these creatures are preparing new weapons for the Earth's invasion ... You're the last hope for humanity. Kill them all, and destroy the cores to pass each level. Do not have pity!

You are alone in the arena, surrounded spiders monsters. Use all the guns and destroy them to have big score.

Welcome to Hyper Space Defense, a first-person, 3D shooting game. You are one of the elite force that was given the task to defend the city from alien machines that were going to destroy the entire human race. Shoot as many as you can. Purchase and upgrade your weapons because this is an endless game. It will test not just your shooting skills but also your endurance. Play now and see how many waves can you finish!

It was the dark times when aliens came to destroy the earth. People almost lost hope but then they created the most powerful robots that will defend the earth. They are called the Mega Mechs! Assemble your own Mega Mechs and defeat all the waves of aliens that are about to destroy the earth. Unlock all the Mega Mech robots and finish all the levels!

It's the year 2077; you are a private security contractor who's always looking for a job. You've received one frantic call from a nearby space station. So, you decided to investigate. As you search deeper in the space station you saw butchered bodies, body parts scattered around the area, blood everywhere and a deadening silence filled the whole place. Find some clues of what had happened. Search for keycards to unlock doors and PDA devices to know more about the experiments. Did the experiments go wrong? Is there any survivors? Are you digging for truth or your own grave? Play this first person shooting 3D game, Portal Of Doom: Undead Rising. Feel the eerie vibe and defend yourself from all the monsters, aliens or the undead! Finish all the challenging levels of Alien Planet, Hangars and Abandoned Spaceship. Find your way out of this labyrinth kind of a ship and discover the real reason why the dead are walking!

Welcome to the monstrous world of Excidium Aeterna. Kill all zombies, aliens and monsters. Select from Survival Mode and Campaign. Unlock all the hidden achievements and be on a killing spree so you can be in the leaderboard!

Protect Zone 2 is an adrenaline pumping first person shooting game where you have to defend your base from the undead, abomination and alien monsters! Survive this horror and unlock all the achievements. Kill as many as you can and get the highest score. Have your name posted in the leaderboard!

Alien Star Menace - Space strategy game. Defeat all the enemies in the level to proceed.

Alien mutants are about to conquer the Earth and your mission is to destroy their base. Kill all those extraterrestrial monsters and save our planet! You'll be rewarded with cash on every alien that you will obliterate. You can use that money to buy yourself bigger and better weapon. Unlock all the achievements and head your way to the top score!

A puzzle game in which you need to help the alien get out of the spaceship. To do this, you need to move the energy battery into the receiver in order to open the door on the level.

Help Cpt. Duck Dodgers to destroy all the robots.

The fourth instalment of the City Siege franchise and the first to be set on another planet. Arm yourself with advanced units and lazer guns and take on the evil plants from this crazy world. After all they have valuable gems we need... Oh, and there are also some humans they abducted for you to save. Get out there and kick some alien-plant butt!advanced units and lazer guns and take on the evil plants from this crazy world. After all they have valuable gems we need... Oh, and there are also some humans they abducted for you to save. Get out there and kick some alien-plant butt!

You are under attack by aliens, and your task is to show yourself as a real defender in this war. Use all the weapons which are thrown around the room and try to withstand long enough so you would meet and defeat the final alien boss.

After Apollo crushing you are the only survival on this strange planet. Grab the weapons and ammo as much as you can and you're survival mission can begin. The aliens come against you in a timing separated waves, from the different places. Use the time between waves to collect ammo and heal you. Good Luck in your survival mission!

It is an endless survival game, where you have to survive the more time possible, by killing the foes on your way with your flashlight !

Explore the galaxy as you shoot down aliens and monsters, right inside your comfortable spaceship. Get your guns reloaded, find the best hiding spot, and good luck shooting down all enemies as they slowly advance towards eating you, wave by wave, minute by minute. Good luck!

Alien Hunter Bros - Fun 2D platformer game, where you need to catch all the aliens. You play this game together with your friends and catch aliens. You can pass these places only by cooperating. Play Alien Hunter Bros on Y8 and catch all the aliens. Have fun!

Ben 10 arrives in the lost world in his new mission.Dangers and evil monsters are everywhere.Could he wipe them out and bring peace by to the lost world? Anyway,your help is needed !

The intergalactic alien swarm known as the Jelly has invaded Earth once again. A titan known as Malodorous and his swarm threatens the survival of humanity. You are Nomolos, the commando and together with Nitrius you must embark on a near suicide mission to buy time in an effort to save humanity.

Mothership is an action-packed game where you play as a superhero that defend the city skycrapers from attacking alien space ships. Rescue burning buildings by spraying it with water. Shoot enemies with your lazer. You must high-jack missiles to destroy the mothership. Will you be able to save your city from burning into ashes? Enjoy playing this game here at Y8.com!

Year 2100, humans have pretty much fucked up the planet. You are an alien and your goal is to save it. Use the air vacuum cleaner, to clear the air. Plant trees, to restore O2. Destroy human polluting facilities, but avoid human casualties.

Fight side to side with your comrades against invading alien forces. Raise the flag and defend the base. You can grab guns and ammo from the houses.

In Space Huggers, play as a alien soldier that must stop the evil empire trying to take over your planet. You are an elite rebel soldier tasked with wiping out those bases. Explore strange planets using your tools of destruction and eliminate the invaders! The empire is spreading like a plague across the galaxy and building outposts on remote planets. You have only 10 clones left, 3 more will be replenished after each mission. New maps is generated with every replay. Enjoy playing this game here at Y8.com!

Aliens have attacked your farm! Grab a cannon and go - protect the cow! You will need a strategy for this game! Shoot from cannons and destroy aliens. Survive the attack and protect the cow. But the aliens are very cunning and they themselves build cunning strategies to steal the cow. You will have to seriously arm yourself, as the alien invaders are very hard to stop! Arrange dynamic fights and destroy all aliens.

You alien, work in an office, but your deadly laser turns on, you need go out and think how to do it without harming his co-workers! Laser Guy - Nice puzzle game with smash items, and interesting different levels and obstacles. Move mouse to aim the laser and hit obstacles. Have a nice game!

Alien Dream is a short, relaxing (hopefully?) platformer where you control an alien.

You are given a mission that will test your survival skills. You need to search and destroy the five alien cocoons that are scattered around the area. It will be a hard mission because you are out in the open and a lot of alien soldiers are coming to kill you. Do you have what it takes to finish the mission? Or will you just end up like the others, blasted to smithereens!

You play as a scrap collector in space and must avoid the aliens that have moved into the abandoned mine you are exploring. Descend down 4 levels to collect as much scrap as you can before making it to the exit portal. Enjoy playing this game here at Y8.com!

Infinite Runner 3D is an endless runner game with an alien and robots. In this 3D arcade game, you'll need to navigate through a series of platforms while fending off attacking robots. Use your shooting skills to take them down while avoiding obstacles and collecting bonuses. Can you make it through all the levels and emerge victorious? Have fun.

Wok Planet is a super 2D game where you need to build a vehicle to smash all the aliens. The aliens were not very friendly and took over most of the world. Play this fun game and create your strategy to smash all the enemies and complete the game. Play now at Y8 and have fun.

Your town is invaded by hostile aliens! You need to destroy all their spaceships so you can put an end to this. Look out for some med kits scattered around the place. Destroy the ships as soon as possible or else your town gets destroyed or you ended up dead!

Close Encounters is a fun 3D game where you need to control the alien spaceship while stealing sheep on the farm. Drive a spaceship and try not to catch the farmer's eye in order to remain unnoticed. Steal seven sheep from the farm to complete the task. Play now at Y8 and have fun.

After clearing your area from those dreaded alien mutants, you found out that they have taken over the city! Knowing you're the only hope of humanity, with a simple gun in your hand, you head up to the city not knowing what the outcome will be. Your only mission is to destroy the alien's mothership! It will be one hell of a fight and you're not the one who's gonna back down! Play Attack of Alien Mutants 2 and experience how to obliterate those alien scums!

Your world has been invaded by hostile abominations and you need to save it by killing the leader of the monster. You need to find it fast because if it is not taken down, different monsters will spawn non-stop and it will just gets harder and harder when they increase in numbers. Play this WebGL game, Monster Invasion, now and see if you can defeat the leader of the pack!