Top similar games like Alien Outpost:
Alien Outpost $6.99
Alien Outpost an adrenaline-pumping 2.5D twin-stick shooter places you at a remote outpost besieged by relentless waves of alien invaders
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Vostok 2061$9.99
Vostok 2061 is a modern-graphics vertical scroll shooter. Gorgeous alien worlds, spaceships, and bosses. Explore mysteries as you listen to a great soundtrack!
Drones, The Human Condition$5.99
An addictive fast paced twin stick arena shooter with banging electronic sound track, nostalgic nods and a barrage of flashing lights and bullets. Your task is simple, kill drones, free humans, don't die!
FullBlast$4.99
Blast your way through waves of alien invaders in this retro style shooter with modern visuals. Collect power ups, destroy the enemy ships and defeat the mega bosses in 12 action packed levels. On your own or with a friend in local co-op mode.
Destroiders$3.99
No nonsense, action packed, 2.5D, Asteroids inspired shooter. Scream around speeding rocks narrowly avoiding an untimely death as you obliterate rocks whilst harvesting their valuable resources. See how far you and your friends can get. Best played with mates but also pretty fun on your own.
Space Scavenger$12.99
Action roguelike where you build and command your own spaceships. Battle enemies, explore planets and customize your ship on the fly. Make the best use of the quirky ship modules you find, ranging from slingshots to ion cannons, to try and avoid certain death.
Stellar Space$3.99
Stellar Space is a new take on a classic arcade game with a modern, rogue-like, form for new players to enjoy!
Gastro Force$6.99
The player takes the role of the last soldier of the highly specialized "Gastro Force", elite troopers trained to infiltrate the enormous alien guts to fight them from the inside!
Auto Auto: Maximum Autodrive In The Alien Apocalypse$4.99
Aliens have taken over humanity and now have the goal to destroy Lexi Lane, the last hope of human resistance. Step into Lexi's "pedal to the metal" shoes. Help the last heroine drive, drift, and blast her way through the alien onslaught and meet her destiny in a last act of defiance and glory.
SurvivorsFREE
Travel through an unknown alien world, collecting new weapons to fight alien monsters and upgrading the Time Tank to withstand hordes of unknown monsters.
JET SET CORPS$6.99
JET SET CORPS is a retro-inspired shoot 'em up action platformer. Fight aliens, rescue colonists, and explore planets in this pixel art adventure. Features co-op multiplayer, endless runner mode, weapon customization, and more! Add to your wishlist now!
Pink Devil$2.99
Join the fight against alien invaders in Pink Devil. Pilot an upgradable fighter jet through diverse environments, from oceans to deserts. Face unique bosses with distinct tactics and use weapons like machine guns, lasers, and rockets. Become the unstoppable Pink Devil and save the planet.
Cosmic Ray$2.99
A game about exploring space in search of hospitable planets for colonization. Casual gameplay and short rounds make it a great option for killing a few minutes.
Aero Striker - World Invasion$14.99
Aero Striker is a highly stylized action-packed flight combat simulator game that is intentionally designed to be easy to make it more enjoyable and less nerve-racking. The aim is to have fun making aliens explode while experiencing the sensation of flying. Let none of the evil aliens escape!
VOXEL Hunters$5.99
Fight, die, repeat! VOXEL Hunters is a top-down roguelite arena shooter. Enter small, fast-paced arenas where you must eliminate all enemies. Engage in quick, action-packed missions, experiment with powerful abilities and augments, and unlock unique cosmetics to customize your appearance.
B.I.O.T.A.$9.99
Intense 2D action-platformer set in a mining colony infected by an alien plague. In B.I.O.T.A. you can choose your hero, fight gruesome monsters, and customize your 8-bit retro experience with swappable 4-color palettes.
White Eyes$2.99
Embark on an interstellar race as the universe collapses. Swing swords, fire projectiles, and reflect hazards to save nomads. 60 challenging missions. Random encounters. Simple mouse controls. Conquer diverse hazards. Will you guide them home?
DOSMan: Space Aliens in Space!$2.99
Planet DOS is under attack by Space Aliens, DOSMan needs to fend them off and defend his home planet!
XenoFeud$3.99
XenoFeud is an insane top-down twin-stick arcade alien shooter, where you must survive hordes of alien intruders while defending a mysterious object in space.
Tilebreaker Next Level$5.99
Earth is under attack! Take control and defend the planet in this adrenaline-fueled top-down shooter. Blast through blocks, dodge relentless enemy fire, and face off against formidable bosses. Can you save the Earth in record time? Get ready for the ultimate challenge!
Boing Bang Adventure$5.99
Boing Bang Adventure is a 2D arcade game in the style of the classic arcade game "Pang" Face almost 50 levels, in 8 different world in single player or in local co-op!
Super Turbo Demon Busters!$11.99
STDB! is a rogue-like game about hardcore mercenaries and space marines escaping from a very cozy planet filled with monsters, nuclear fire, viruses and pixelated violence.
Timeloop Titans$9.99
Timeloop Titans is a fast-paced space arcade shooter where you defend the breathtaking Planet Gaia from relentless alien invasions. Upgrade your ship, conquer challenges, and save humanity in this cosmic battle for survival!
Circus Interstellar$9.99
Circus Interstellar is a brutal arcade shooter featuring high-octane action, and killer music! Earth voyagers encounter a sadistic alien race with a terrifying clownish appearance and a nasty appetite. Will the survivors escape the gory circus? Or will they be assimilated like all the rest?
ROIDERS$4.99
Become an asteroid miner and loot your way to supremacy! Fight waves of vicious aliens or battle against your friends.
Alien Wall$3.99
Alien Wall is a powerful genre mix between a brick breaker and ‘shoot em up’. Modern retro Arcade fun at its best!
RockjackFREE
A retro-inspired 2D space shoot-em-up. Mine asteroids! Shoot alien saucers! Get rich or die flying!
Deathroids$2.99
Remember the golden age of arcades playing a game with all the classic 80's/90's space-shooting features. See how far you can go by destroying all enemy robots that are ready to planet earth attack.
Alien Death Mob$1.99
Aliens have invaded Earth! Towns, cities, deserts, they're everywhere! Take on the role of Earth's last super soldier and confront the alien menace in this intense twin stick shooter!
Captain Jackson$1.99
Dynamic 2D retro, pixel-art, shooter. Fly fast, shoot accurately. Fight back the Rivanirs invasion. You are the Captain Jackson, you are their Doom.
Survive Planet YubglubFREE
Survive Planet Yubglub is a survival rouge-lite, where Earth Representatives must hurl dodgeballs while evading toxic slime aliens and their lethal projectiles. The Earth Reps. must carefully navigate through the harsh environment of planet Yubglub. Choose your character, and Survive Planet Yubglub!
2 Minutes 16 Seconds (2分16秒)FREE
This is a 2D Pixel Top-Down Space Shooter Game. The game implemented Rogue-Lite elements, like the survivor series.
Gratuitous Space Shooty Game$3.99
Gratuitous Shooty Game is a hobby space shooter made by the developer of Gratuitous Space Battles, reusing the art from that game :D.
Drone Break$9.99
Brutal, high action, randomized run n gun blast a thon.
Escape the Kreegan$4.99
Escape corruption and deliver truth to the people in the only way you know how. as a space fighter pilot! You steal a ship and flee, it falls to you to duke it out in space and deliver truth to the people. Restore peace. Restore justice. Save humanity and Escape The Kreegan!
Arcade Classics$0.99
Collection of a few arcade classics, remade with a fresh and friendly looking art style and a beautiful soundtrack.
Moorhuhn Invasion - Crazy Chicken Invasion$4.99
CHICKEN INVADERS ATTACK!We've always known it, and now the day has come:THE DAY OF THE INVASION!!!
Kid Bubblegum$5.99
Aliens have invaded, and Kid Bubblegum is too cool to let that slide. Armed with his trusty Gumslinger, he’ll kick some alien ass and shoot bubblegum…and he has plenty of gum!
MoonLess$3.99
Moonless is a challenging side-scrolling platformer in the style of classic arcade games of the 1980s, where you control a helpless astronaut who has been left stranded on the moon, and now has to face an invading alien force to earn a chance to go home.
Bad Chicken$9.99
Bad Chicken is a retro styled sideway scrolling shoot-em-up inspired by the retro classics. It takes place in 8 locations in the Ferus system, each one with different challenges, and dangers.
Notrium$1.99
You have crash-landed on Notrium. Your food supplies are running low, and a pack of predatory aliens have your scent. You're out of bullets for your pistol, your only weapon a handful of rocks. A freezing night is setting in, and you are desperately looking for firewood. Can you survive?
Die Bloody Nazi Die!$4.99
Die Bloody Nazi Die! is 2D CASUAL twin stick shooter randomly generated dungeon crawler with rougue-lite elements. Follow the alien named Kin in his fight to free Sirel, his love, and defeat the regime!
Gunlocked$4.99
A twin stick shooter without the twin stick, Gunlocked is a sci-fi action roguelike about careful positioning and upgrade selection. Manage unique targeting systems across multiple weapons and upgrades, as you battle legions of alien ships, and then do it all over again!
Wicked West$4.99
Survive the unforgiving frontier in Wicked West, a top-down shoot 'em up where every kill earns upgrades and new abilities. Face relentless enemies, epic bosses, and one-shot death in this brutal Wild West survival challenge. Can you outlast the chaos?
1000 Waves$5.99
1000 Waves is a bullet hell arcade game that becomes progressively difficult as you approach the 1000th wave. Strengthen your ship by leveling up and conquer the final boss!
Operation Hardcore$4.99
Operation Hardcore is an action-packed 2D side-scrolling shooter inspired by classic twitchy action games of yesteryear, but with modern touches and conveniences.
Stray Shot$5.99
Monsters come from missed shots! Learn the monster's behaviours, shoot wisely and balance the difficulty to maximize scoring!
Use Turbo To$2.99
Maneuver with precision through a never-ending, difficulty increasing, and procedurally-generated barrage of stages. "Use Turbo To" dodge and ram through many dangerous encounters to achieve your next high score in this retro arcade throwback.
Nanoplanet Survivors$3.99
Nanoplanet Survivors is a heart-pounding bullet hell survival game set on a hostile planet. Battle relentless waves of alien foes and adapt with powerful upgrades and unique character abilities. Epic boss fights make every playthrough a thrilling challenge. Can you emerge as the ultimate survivor?
Starfighter Neon$0.99
You've been dropped into enemy space. Weave your Starfighter between alien spaceships, lasers, asteroids and bombs destroying as many as you can and collecting valuable coins and powerups as you go.
Skycliffs$6.99
Skycliffs is an action shooter roguelike dungeon crawler with fast-paced top-down platforming. Jump and dash across sky islands, fight loads of monsters, and get upgrades to survive the many dangers of your journey. Will you be strong enough to reach and defeat the keeper of this floating world?
Xentron Attack$0.99
Xentron Attack is a multi-directional shooter. The evil alien forces called Xentron have invaded your galaxy and spreading dangerous meteors and missiles in the space. Fight with smart enemies who calculates your movements. Turn your ship precisely and use the borderless space wisely.