Play free online space games, alien games, puzzle/ strategy games: Fun space games for PC, Mac desktop, laptop, notebook players, no download required. Top-rated arcade space games for kids/ teens (girls & boys) to play now online, good new Flash games, cool 3d Unity games, mobile/ android phone games..
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Free Alien & Space Games Online

Rating: 7.6/10 - 74205 votes

Fun free space & alien-themed games for children, teens & nostalgic grownups to play now on Learn4Good.com. From classic arcade space invaders games, mouse-click shooting action games to more challenging space strategy games. 

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Tribal Hop - How high can you hop or jump? Demonstrate your hopping and timing skills in this fun online game for kids. It is an ancient tradition among the members of the “Yusosmeli” tribe to compete in a hopping contest. You must hop as high as you can on to the sacred temple steps. The steps are suspended high in the air and some of them are moving very fast, even in opposite direction from the one you are one below it. You have to get your timing just right, hop and be careful not to miss the step and fall down.

If you do fall, you lose one life out of 5 and you have to start step hopping from the beginning again. The quicker and higher you jump, the more points you receive. If you are good enough, you will be earn a proud tribal “Ufilgud” title.

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Missile Strike is a fast-paced, aiming and shooting-based tower defense game set on the Moon! Here, you must quickly and efficiently launch missiles into space in order to destroy the dozens of incoming comets / asteroids that threaten to destroy your space bases. Choose to defend just one base at a time, or test yourself with the more difficult 3-base mode! Showcase your accurate missile-firing talent, and survive for as long as possible!

Skills / strategy required: As head of Anti-Asteroid Firepower, you must combine sharp concentration skills with fast reflexes as you attempt to obliterate as many falling asteroids as possible. A good strategy (especially when you are under pressure) is to ignore asteroids that aren't threatening your bases. Focus on the ones that are careering toward your bases, and take them out as priority targets!

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Stargazer is a brilliantly-simple yet awesomely-addicting spaceship piloting and shooting arcade game where you have to survive for as long as you can against seemingly endless waves of bizarre alien cyborg spacecraft. Set in the infinite side-scrolling vastness of outer space, you have to masterfully dodge and weave your shuttle-style spaceship around a whole host of unusual and dangerous hostile beings from galaxies billions of light years away. However, you aren’t just on the run from these would-be destroyers – you can counter with some awesome firepower of your own! Blast these callous robot enemies into eternity, and steer your way to victory in this breathtaking battle for mankind's survival in space!

Spaceship navigation has never been so intense and nerve-racking! Your rocket comes under constant attack, so your concentration levels have to be extremely high at all times if you want to keep hold of your precious, limited lives. Swift, calculated missile firing and slick spacecraft maneuvers are all that stands between you and an explosive and fiery end! Have you got the nimble keyboard-tapping prowess to survive and wipe your brow? Well Captain, you’re a long way from Houston, and we definitely have a problem! We wish you very Good Luck out there in your determination to see this through!

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Alien Transporter is a challenging, spaceship flying and taxi driving-based skill game (for one or two players) where you play the role of an outer space cab driver serving a bunch of friendly green alien customers. Using deft keyboard control skills in each level, you must carefully transport the aliens to their desired destinations in an outer space town (ensuring to avoid any unnecessary collisions with obstacles along the way), and then direct your rocket-powered transport spacecraft to an Exit Portal. Collect coins along your routes, and be really careful not to run out of fuel! If you accidentally incur too much collision damage, your transporter explodes!

Skills required: In this fun, tricky, movement-based arcade game, good hand-eye coordination skills are essential as you try to safely maneuver your alien transport spaceship through each confined level. As with driving any vehicle in real-life, practice makes perfect as you exhibit delicate, nimble finger work throughout your taxi journeys. Multitasking skills are important in later levels when two spaceships operate simultaneously.

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Work your reflex skills, and strategically and surgically pilot a jet-powered, futuristic drone spacecraft through a series of obstacle-filled, rock cluster environments in this challenging, platform-based, flying action game! Cluster Lander is a stimulating, escape-the-level exploration game for older kids and teens where you get to be a test pilot for a special, unmanned drone (UAV). You must guide this levitating, rocket-fueled android through a series of 8 dangerous missions where you must find and collect special coordinates, and then make your way back to the level's entry point. Your powerful Cluster Lander craft must flip switches, avoid mine-style baddies, and fly through narrow game environments while avoiding harmful collisions. This is space piloting at its most intricate and testing! Are you up to the task?

Skills required: This tricky space flight arcade game requires a fluid combination of smooth hand-eye coordination skills, really sharp reflexes and anticipation skills, and a willingness to learn from your mistakes (trial and error). The rocket-powered movement of the Cluster Lander requires a very steady hand, and a high level of computer keyboard control.

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Play a quick-fire, space invaders-style game online! Space Invader is a fast-paced, one-level arcade challenge based on the iconic 1980's game! The premise is simple – you are the ‘good guy’ spaceship at the bottom of the play area, and must blast the creepy alien ships at the top of the game screen with accurate missile fire. Fast reaction speed and excellent hand-eye coordination skills are key here to your success. So, are you ready to rid the galaxy of these pesky little retro invaders for once and for all?

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Starcom is an intense and challenging space-shuttle piloting and shooting action game where you have to protect the Galactic Starbase (the only human-inhabited space station in the area) from an overwhelmingly-large army of invading alien spacecraft. With the Galactic Command’s fleet strewn across the front-line of some faraway battle, they have offered you (a rookie fighter pilot, straight out of the training camp) the huge honor of becoming the galaxy’s only human spacecraft Commander. You must police the entire area around nearby planets, eliminating any threats, and picking up valuable information and artifacts from your slain adversaries.

Who dares to play the part of our hero space-shuttle pilot in this extremely difficult space alien shoot ‘em up adventure? You must expertly dodge and weave your way through masses of minuscule enemy fighters, larger hostile space stations, and explore the vastness of space on a daring mission to make your planet safe! Quick fingers, high levels of concentration, determination and supreme accuracy are all very important attributes to help achieve success. Have you got what it takes Space Champ? We certainly hope so - you’re the only thing that stands between these ruthless invaders and total annihilation of our world!

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Defend our planet, and figure out the best way to blast hard-to-reach alien invaders in this aiming and accuracy-based skill and puzzle game! Playable on iOS, Android, notebook, and desktop PC, Cowboy Vs Martians is an interactive, physics-based action game and brain teaser that combines fun problem-solving with accurate shooting skills. Using a ‘Wild West’ revolver, you have a limited number of bullets with which to eliminate all of the slimy Martians – who often have the protection of well-placed obstacles and other deterrents. Can you show True Grit and come out on top in all (increasingly-difficult) 40 levels?

This HTML5, physics-based shooting game should work on iOS and Android devices, as well as most web browsers for PC / Mac, laptop, notebook. An understanding of basic aiming, angles and bullet trajectory is important here as many of the levels require logic, analytical thinking and problem-solving skills in order to ensure the aliens are within range. Fast reactions and tactful mouse clicking / finger tapping skills also play a big part in your success or failure to save planet earth from these terrible invaders! In later levels, trial and error becomes more important as there are many obstacles to be removed – and these tasks often need to follow a specific sequence.

Control Tip: For mobile / tablet users, aim by tapping and swiping the target marker anywhere on the game screen, and then shoot by tapping on the red gun button in the bottom left corner of the play area. 

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Play a very challenging, high-intensity, futuristic tower defense game for older kids / teens where you are in charge of defending your server from waves of attacking viruses (geometric shapes). VR Defender Y3K is an innovative, interactive, space-age battle strategy game with cool retro-style graphics where you must defend a super computer's firewall from constant attack by enemy viruses. As Chief Network Security Engineer, you must methodically place virtual turret guns along the network path in order to stop the waves of viruses before they penetrate your firewall.

Background info: The year is 3000, and a hi-tech software company has employed you to defeat the hundreds of viruses that plan to attack their server. However, due to sudden budget cuts, you must raise your own virtual income for further weapons by collecting bounties from each virus that you eliminate.

Reasons to play this cool, strategy-based survival game: Exercise your strategic decision-making skills and tactical battle skills as you carefully and meticulously build turrets in defensively-advantageous positions along the pathway. Experienced fans of tower defense games should enjoy the challenging, fast-paced action here.

Strategy to win: A cool head is important here, as is the leadership skill to see the ‘bigger picture’. Measured, clinical placing of turrets is the best strategy. It's all well and good to have turret guns placed where the enemy first appears but what if they break through your initial defenses? So choose your defense placements wisely!

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Play an intense, retro shoot'em up Flash game: BitShift is a challenging, side-scrolling, 1980s space invaders-style, action arcade game that requires very fast reaction speed, good hand-eye coordination, accurate shooting, and super survival skills. Here, you take on wave after wave of dangerous enemy spacecraft, and must dodge and weave around the game screen, avoiding fire, increasing shield power, and eliminating enemies when and where possible.

Good battle strategy is the key to success as you rapidly decide upon the best plan of action to destroy each wave of your pesky opponents. Your survival largely rests on your ability to preserve your energy, and keep your spacecraft from harm. Have you got the cool-headedness, deftness, daring and cunning to become a galactic space pilot legend for centuries to come?

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Clash N' Slash is an intense and addicting, multi-level planet defense / alien blasting game where you must defend your homeland against waves of huge enemy spacecraft approaching from all angles. As the last pilot standing from your fleet of defensive ships, it's up to you alone to quickly orbit around the planet, fending off attacks from on-coming spacecraft.

Featuring more than 60 levels, 19 weapons, 17 power ups, and huge bosses, this point-and-click, space invaders shooting arcade game requires really fast reaction speed and accurate mouse control skills under pressure. Your planet needs you, Captain!

A version of the Clash N' Slash game is also available to purchase and download. Please see this page.

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Gravity is a highly-challenging, space flying skill and physics-based game where you must use nimble dexterity skills to perform tricky spaceship piloting maneuvers and tasks in each level. Using a combination of the thruster movement of your spacecraft and the planet's gravitational pull, you must take off and guide your spaceship to land safely on narrow podiums, collect fuel cells, avoid giant space aliens, and more on this fun and intense quest to help save the planet Generica.

Skills required for this tricky arcade game: This challenge requires deft keyboard control, good timing, fast reactions, patience, and the essential willingness to learn from your mistakes. Your ‘lander’ spacecraft moves in a very unusual, gravity-affected manner, and you must show that you are able to adapt to the changing environment in each level if you are determined to succeed.

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30k Starfighter is an old school, carefree and enjoyable space invaders arcade game where you take on hordes of enemy spacecraft in a non-stop, missile firing space battle. Utilizing fast reactions and accurate shooting skills, you must maneuver your spaceship around a condensed battlefield filled with swooping enemy spacecraft. Your goals are simple; survive for as long as possible, and score as many points as you can by eliminating enemy fighters.

Reasons to play this fun arcade game: If you're nostalgic for classic, retro space invader games from the 1980s, this is just the treat! Fans of non-stop, high octane flying and shooting games should also enjoy the action here. There are no special tasks to complete. You must simply show the invaders what you're made of!

Strategy to win: Fast reactions, good coordination and observation skills, and a high level of concentration are all important attributes in any battle. There is very little time to react as waves of enemy spaceships descend upon your position. Try to limit your mistakes – one tiny slip, and your ship could go up in smoke!

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Play a teamwork-based, platform adventure game where your task is to guide a courageous astronaut duo through a series of increasingly-difficult, ledge-based levels. Interplanetary 3 is an interactive, escape-the-level brain teaser game for one or two players where you must safely maneuver a ‘little and large’ astronaut pair through 20 ledge and obstacle-filled environments. Completing the game is a tricky task for two friends or family members, and a highly-challenging mission for one player alone controlling both characters simultaneously!

Skills required: As this a fun mashup game combining problem-solving puzzle elements and action, you must call upon an array of physical and mental attributes to be an ‘Interplanetary’ success. Fast reactions, good hand-eye coordination, anticipation skills, and tactful keyboard control are all very important. Smart analytical thinking skills, problem-solving determination, creative engineering skills, good teamwork and stamina are all called upon here.

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Guide a brave astronaut duo through a series of challenging, survival-based platform levels: Interplanetary 2 is a very hard, multi-level platform adventure and brain teaser puzzle game for 1 and 2 players where you can control both astronauts (little and big) simultaneously, or enlist the help of a best friend, classmate or family member! The space-loving pair of buddies are faced with numerous obstacles and deterrents - not least a series of intermittent meteor showers that eliminate all non-sheltered characters! You must use your considerable brain power to help the astronauts to shelter from those meteor showers, collect gems, avoid aliens, replenish oxygen levels, rescue a third astronaut, and eventually escape in your spaceship in this high-intensity arcade challenge!

Reasons to play this in-depth, task-based adventure game: If you enjoy a good brain teaser test with platform jumping elements, you're on the right planet here! Test and exercise your problem-solving and analytical thinking skills as you try to complete the many tasks required to complete each level.

Strategy to win: Smart use of teamwork is vital to your success and progress. The little and large duo must work well in tandem, utilizing their individual attributes (For example, ‘little’ can jump high, while ‘big’ is able to quench fires). Good hand-eye coordination, nimble keyboard skills, fast reactions, and determination are all vitally important.

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Nostalgic PC games fans - Strap yourself in for some retro, 80s space invaders shooting action! Mars Cowboys is an addicting, old school, space invaders-style arcade game where you embark on a solo mission to destroy alien spaceships on the planet Mars. Featuring classic, top-to-bottom scrolling and arrow key shooting game play, you must pilot a nimble spacecraft through an onslaught of enemy forces. However, you have absolutely no room for error – one hit from an enemy missile or aircraft, and your mission is toast!

Reasons to play this space shooter game: Travel back in time to the 1980s and 90s when PC games had more straight-forward game play yet still offered a challenging test of your hand-eye coordination, reaction speed, concentration skills, and good old determination.

Strategy to win: Remember, one mistake and it's back to the start! This means that you must be fully concentrated at all times. You don't have to eliminate every single enemy spaceship that enters the game screen – Pick your battles wisely, and try not to get overwhelmed by the invading numbers. Staying still is also a big mistake – So, try to be constantly on the move, dodging and weaving around the play area.

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X-Cav 8R Alpha is a blistering, high-octane, vertical scrolling shooter / space invaders-style arcade game where you must pilot a small spaceship through a treacherous battlefield filled with fast approaching meteoroids, missile firing alien spacecraft, and more. This quick-paced game of skill and timing is very much a test of your survival instinct and ability; can you dodge and weave skillfully enough to keep your spaceship intact, and eliminate enough enemies to score highly?

Strategy / skills required for this retro alien invaders game: Like all good throwbacks to the classic 1980s space invaders genre, this fun online game requires good observation and anticipation skills, really fast reactions, deft movement and timing, dogged determination, and more. You need the desire and the stamina for a long flight – providing you have the piloting skills to survive deep into later levels.

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Fracture is a highly-addicting and intense classic 1980s-style, space invaders shoot 'em up extravaganza and accuracy-based skill game. Here, you control a speedy spaceship in a confined battlefield, and must attempt to eliminate the various colored-shape enemy spacecraft that chase you around the play zone. This is non-stop space battle action, with constant dodging and weaving as you simultaneously try to survive and go on the attack!

Skills / strategy required for this retro space fighter arcade game: Fast reactions, good hand-eye coordination skills, sharp focus and concentration, and nimble reflexes are vitally important as you attempt to keep your spaceship out of harm's way while eliminating enemies. You simply must stand tall, play it tough, and take on all enemies!

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