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sci fi games
Play free sci fi games online!
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sci fi game
you want to play from the list below. You can sort the games alphabetically, by date or by rating. Almost all of our sci fi games are playable on full screen. Have fun!
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Corporate Wars: The Second Wind
Take part in a new war on the planet PX-21. Build a towers, defend the base and win! Learn the history of PX-21 in 8 new bloodiest chapters. - Classic tower defence in sci-fi setting. - 8 addictive missions. - Lots of different towers. - Tons of enemies and FUN!
Corporate Wars: The Second Wind
Colony Defenders TD
Build strong defenses and lead your troops to victory against Kron Corporation's invasion in this action-packed tower defense game.
Colony Defenders TD
Electric Armor
The world is under attack by a mysterious army of robots! A team of heroes has been assembled to infiltrate their base and stop them. This team is unnamed, but they all wear Electric Armor. You will choose your armor, and your partner's. Together you will blast your way to victory, or suffer world domination.
Electric Armor
Gunfire Echoes
Gunfire Echoes is the first 3D shooter with tower defense elements and achievements! 6 Complete Levels with Epic Boss Battles! Save the world by destroying all the enemy soldiers.
Gunfire Echoes
Plazma Burst 2
The player takes on the role of a Marine, which didn't get sent to past in time to change the history to a better life. In Plazma Burst: Forward to the past, after when our hero's ally was critically damaged in the previous game the marine travels back to the Earth to try traveling back in time once again. Will fortune smile to him this time?
Plazma Burst 2
FreeFall Tournament
FreeFall Tournament is a fast-paced, space marines third person shooter (TPS). It's a free to play browser game made by Free Range Games in Unity 3D. Unique combat and balance separates this sci-fi action game from other FPS.
FreeFall Tournament
Phase TD
Alien life forms have been detected near your planet. Your army has mobilized its defensive tower forces to protect your home world. Stop the invasion before the enemy reaches your cities!
Phase TD
Swarm Defender
A throwback to the glory days of old-school Starcraft style tower defense! You control which towers you unlock! Defend against hundreds of enemies coming in massive waves!
Swarm Defender
Escape Machines
Awesome game with graphics and sound never seen before in a browser game. You are one of the last survivors since an incident happened. All of your produced war machines evolved on their own, made a breakout and captured the most of your friends.
Escape Machines
Parking Impossible
Parking impossible is taking your skills in outer space. On a far away planet in the next century people park they hover crafts on charging stations. Roam around futuristic buildings and foreign plants, avoid hitting alien eggs and gather all the energy clouds in sight to gain enough time to get to the designated charging station.
Parking Impossible
Crusaders Truck
Sabotage the alien base from inside. Collect enough explosives located in different sectors of the base, to destroy the main power source of extraterrestrials.
Crusaders Truck
Neon Circuit
Choose your favorite car and get ready for a fast track neon race. Beat your opponents, fuel your car and win the race to qualify for next level. use arrow keys to race.
Neon Circuit
Moon Rush
Choose your futuristic vehicle and take part in the moon racing. Collect the required diamonds and gems and shoot down your opponents to win the game!
Moon Rush
Alien Planet Escape
The spaceman have landed on an alien planet and he is on mission to collect samples from the planet. Help spaceman collect the samples and get to the base safely. Use the truck gun power to defeat all the monsters and use shield to protect from meteor attack.
Alien Planet Escape
Police Dummies
Race your Razor ATV through the dangerous planets of the galaxy. This crash dummy police officer is on a mission to survive all the space tracks in the universe.
Police Dummies
UFO Racing
Intergalactic association UFO racing hold an championship. You've got a chance to send a challenge to the best racers across the universe and try to win first prize. Take a dare and win!
UFO Racing
Mars Colonies
Mars Colonies is a RTS game about building and protecting your own colonies on Mars. Hire skillful colonists, help them survive marsquakes, dust storms and other threats, and build the most successful colonies on Mars. With Science!
Mars Colonies
Bomb Runner
A maze-riddled mix of minigolf and pinball set in deep space. Guide your bomb through 24 levels, improve your ship with upgrades, battle against epic bosses and save the galaxy!
Bomb Runner
Quantum Corps
Detroit in the distant future... The year 2002. The city is infested with illegal substance factories, run by vicious gangs. The only hope is the recent formation of a new elite unit, Quantum Corps. You are a member of that unit. Bend time and gravity to be the best of the best.
Quantum Corps
Nocran Space
Stop the Nocran army from reaching planet Earth in this epic top-down shooter.
Nocran Space
Nuclear Plant 2
Humanity is nearing its end, and it is up to you to preserve life at all costs! Nuclear Plant 2 is an awesome shooter where your main goal is to constantly upgrade your arsenal! Unlock bigger and badder guns by doing research! How many waves can you survive for?
Nuclear Plant 2
Trooper Assassin 2
Gun down the enemies attacking your base! Earn money for each killed warrior and spend it on significant upgrades.
Trooper Assassin 2
Central Alien Agency
As a special interplanetary agent your task is to prevent galactic conflict. Shoot to kill all alien life forms on sight.
Central Alien Agency
The Breach
Since its arrival in the Orbit of G-54 the Hermes, a prototype Starship did not answer any communication nor did it give any sign of life. Probably all the crew members have turned into zombies. As the head of security of G-54 it is Sergei’s job to go aboard the Hermes to see what is happening. What kind of horror Sergei will encounter aboard the Hermes!?! Learn what happened, fight horrible creatures, upgrade your character, collect powerful item in The Breach! In this unique flash Horror Adventure game.
The Breach
Defender Of The Galaxy
Shoot countless waves of incoming enemies and upgrade your spaceship to defeat the evil forces who threaten our galaxy. Save the Galaxy in this epic arcade shooter! 20 levels and bosses, 3 modes of difficulty, 3 challenge modes, dozens of enemies, upgrades, and pure action!
Defender Of The Galaxy
Desert Moon
Survive for 5 days battling hordes of hostile creatures on a distant planet. You'll gain new weapons and support as you battle through each day.
Desert Moon
TriBot Fighter
Become a true warrior and learn the way of the Tribot in order to beat it. Examine and master the new abilities that you learn as you progress. By collecting achievements you gain more lives when you start the game. Transform into 3 different robots as you play! Unlock 18 special abilities that will help you in your quest! There are 16 achievements to be completed, go get them!
TriBot Fighter
Mutant Alien Assault
Vicious aliens are boarding your ship. Hyper jump is your only chance to escape. Fend off the mutants with a variety of weapons while you fuel the ship's reactor core. Can you survive the alien assault though 5 Sci-Fi inspired levels? Yes? Then test your mettle in survival mode and compete with the world to see just how long you can survive. Mutant aliens, guns, gore and dub step! What more could you ask for in this frantic, platform arena, combat game.
Mutant Alien Assault
City Siege 4: Alien Siege
Get out there and kick some alien-plant butt! Arm yourself with advanced units and laser 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. The fourth installment of the City Siege franchise and the first to be set on another planet.
City Siege 4: Alien Siege
Protobotic
Advance your weaponized robot through a series of challenges to escape from a science facility in this puzzle-shooter with unique geometric level designs. Each of the 18 levels offer new and exciting obstacles to overcome using your cognitive processor (and lots of explosions!).
Protobotic
Mecha Arena
Management game in which your objective is to build, upgrade and training your mechanical robots. Hire the best rider for your machines and fight against other mechs.
Mecha Arena
Bots Strike
Real-Time Strategy game by Esabra Game Studio. Use your tactical and strategy skills to build a Robot armies and upgrade them to add more strength to fight. Defend your base and attack your enemy with your assault robot, sniper robot, missile robot, and rocket robot. Fight on desert, coast, forest, volcanic mountain, and the facility. The Clan War has begun!
Bots Strike
Fujitsu Defender
Tower defense game based on levelling your tower. Lots of towers, enemies, achievments and upgrades. Ballanced game with very wide range of game strategies.
Fujitsu Defender
Spacecraft
In the far future, Earth is destroyed by decades of war for resources. The survivors build huge motherships and depart for a journey to the stars, yet the Human learn that they are not alone as they encounter the dreadful, bionic Xeyed and the mysterious Awlon…
Spacecraft
ProtoWing
As the enemy invasion continues to decimate the defending fleet, there is only one hope left for your homeworld- a prototype fighter, never tested in battle.
ProtoWing
2020: The Beginning
Skill and strategy is the only way to win the war against the evil aliens. If you are looking for a mix between Master of Orion 2 and a space shooter you should look at this game.
2020: The Beginning
Repel Magnets
Colorful Magnets need you to repel them to their respective lanes! Would YOU be their HERO ?
Repel Magnets
Glean
Explore and mine minerals! Visit alien planets and mine for the resources you need to upgrade yourself and your ship. Features procedurally generated levels and an object-based crafting system for upgrades. Find 18 artifacts to unlock all story pieces and "finish" the game, or keep playing to get all the upgrades.
Glean
Robot Legions
Blast your way through the legions of robots to liberate your homeplanet. A top-down shooter with a lot of unique enemies, upgrades and achievements.
Robot Legions
A.R.C.S
An endless battle waged by Megacorps, Robots, Aliens, Fanatics, and Mutants. Each faction trying to gain, and retain control of resources. Command a squad of mercenaries to protect your base.
A.R.C.S
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