The guard of dungeon
The Guard of Dungeon - This is the mad first-person shooter. The Unknown Alien Force (UAF) wants to enslave Our World.
62% of 60 Steam reviews are positive$1.99
Games like Gastro Force
Hooked on the retro and fast-paced side of Gastro Force? These games line up well for what comes next.
The guard of dungeon
The Guard of Dungeon - This is the mad first-person shooter. The Unknown Alien Force (UAF) wants to enslave Our World. Only the Hero can save the Planet from UAF invaders.
Retro, Fast-paced, Tense
62% of 60 Steam reviews are positive$1.99Alien Shooter
A top-down shooter from 2003 that still knows exactly what it is: a dark military complex, thousands of aliens, and nine very large guns. Clear the base mission by mission, upgrade your soldier, and paint the floors red (or green, your choice). Short, loud and endlessly replayable.
Retro, Fast-paced, Tense
96% of 3,964 Steam reviews are positivePlayers online now: 10$4.99Alien Attack
You are a space trooper. Your crew finished the cleaning mission and left you alone by accident. Now you are surrounded by aliens. Persist them as long as you can.
Retro, Fast-paced, Tense
82% of 182 Steam reviews are positive$1.99Zortch
A fast, funny sci-fi shooter about a slacker who booked the wrong holiday and now has to shoot her way off an alien planet. Nine guns, 15 levels, giant brain-eating aliens, and a violence mode that turns blood into confetti. Old school in the best way.
Retro, Fast-paced, Surreal
98% of 1,290 Steam reviews are positive$4.99Alien Scumbags
Alien Scumbags is a sci-fi action platformer with a big slice of horror and a stack of pop culture references. You'll run, hide and kill across several levels, collect items from capsule machines and unlock characters.
Retro, Fast-paced, Surreal
98% of 65 Steam reviews are positive$5.99Alien Rage - Unlimited
A fast, old-school sci-fi shooter where you blast through armies of aliens across 14 levels, juggle ten weapons with two firing modes each, and take on eight beastly-sized bosses. It is hard, loud and unapologetically arcade, and it rewards every clean headshot.
Retro, Fast-paced, Tense
69% of 1,447 Steam reviews are positivePlayers online now: 1$19.99Palpus X Annihilation
Isometric action shooter with light RPG elements. Brutally kill tons of alien monsters, find over a dozen powerful weapons, skill up your hero & stop the blood thirsty invaders in a classic handcrafted campaign. Never ending waves await you in horde-mode!
Retro, Fast-paced, Tense
96% of 78 Steam reviews are positive$5.99Galaxy Highways
An indie story-driven space shooter with intense battles, escalating enemy waves, and massive boss fights. Choose and upgrade ships, unlock powerful weapons, and protect your allies. Upgrade your base and construct a battleship to take on even stronger enemies. All set to a rock & synth soundtrack.
Retro, Fast-paced, Tense
95% of 62 Steam reviews are positive$9.99Alien Removal Division
A fast first-person shooter where you are the last survivor of a 1950s research base overrun by aliens. Wall-run, double jump and dash through hordes of creatures, blast them apart with heavy weapons, then chase your best time in a dedicated Time Trial. Short, frantic and made to be replayed fast.
Fast-paced, Tense, Brutal
88% of 1,094 Steam reviews are positiveFreeIt came from space and ate our brains
It came from space and ate our brains is a unique Arcade top-down shooter. Looking for addicting gameplay, four-player co-op mode, and tons of aliens to send into oblivion? You’ve come to the right place!
Retro, Fast-paced, Surreal
79% of 168 Steam reviews are positive$2.49Expendable
Somewhere in the future a hostile alien race conquers most of the galaxy. Scientists developed the “Millennium Soldier” project by cloning two super-soldiers. Armed with blasters they will battle scores of monsters, robots and boss aliens to save us and get a well-earned reward.
Retro, Fast-paced, Tense
84% of 73 Steam reviews are positive$3.99Shooting Saucer
A flying saucer chases you all over the galaxy. Run away, defeat enemies, and evolve to avoid getting abducted
Retro, Fast-paced, Tense
89% of 45 Steam reviews are positive$4.99
Cheaper than Gastro Force
Alien Shooter
Fight through a dark complex with a growing arsenal, upgrading your soldier as the horde keeps coming.
96% of 3,964 Steam reviews are positivePlayers online now: 10$4.99
Alien Attack
You are a space trooper. Your crew finished the cleaning mission and left you alone by accident. Now you are surrounded by aliens.
82% of 182 Steam reviews are positive$1.99
Zortch
Escape an alien planet with nine weapons, a mean kick and a mysterious voice on your side.
98% of 1,290 Steam reviews are positive$4.99
Alien Scumbags
Alien Scumbags is a sci-fi action platformer with a big slice of horror and a stack of pop culture references.
98% of 65 Steam reviews are positive$5.99
Palpus X Annihilation
Isometric action shooter with light RPG elements. Brutally kill tons of alien monsters, find over a dozen powerful weapons, skill up your hero &…
96% of 78 Steam reviews are positive$5.99
Alien Attack: Pocket Edition
You are a brave space trooper. Your mission is to clean an alien sector with a huge amount of enemies.
90% of 20 Steam reviews are positive$1.99
Alien Shooter - Last Hope
New chapter in history of the legendary game, including 10 story missions.
77% of 328 Steam reviews are positive$4.99
It came from space and ate our brains
It came from space and ate our brains is a unique Arcade top-down shooter.
79% of 168 Steam reviews are positive$2.49
Expendable
Somewhere in the future a hostile alien race conquers most of the galaxy.
84% of 73 Steam reviews are positive$3.99
Shooting Saucer
A flying saucer chases you all over the galaxy. Run away, defeat enemies, and evolve to avoid getting abducted
89% of 45 Steam reviews are positive$4.99
Spaceguy
Humanity is under threat. Unknown creatures captured a space ship that moves directly to the ground. Far future.
53% of 66 Steam reviews are positive$4.99
Hidden gems like Gastro Force
Zortch
Escape an alien planet with nine weapons, a mean kick and a mysterious voice on your side.
98% of 1,290 Steam reviews are positive$4.99
Extraneum
Extraneum is an old-school, sci-fi single-player first person shooter with an emphasis on exploration and secret hunting.
94% of 115 Steam reviews are positive$14.99
Bears In Space
Unleash your inner bear in this over-the-top bullet-hell FPS!
87% of 495 Steam reviews are positive$19.99
Exophobia
Explore and fight your way through a crashed human spaceship infested with relentless hordes of aliens as you become more powerful with exciting…
86% of 106 Steam reviews are positivePlayers online now: 1$14.99
Dust and Aliens
Play a space cowboy as he travels to an alien-filled arena, traversing the various game rooms to achieve the highest possible score and challenge…
87% of 177 Steam reviews are positiveFree
Alien Removal Division
Fight through an infested 1950s military research facility with parkour moves and heavy guns.
88% of 1,094 Steam reviews are positiveFree
CARNAGE OFFERING
A fast-paced sci-fi FPS where you battle waves of robots and genetically engineered creatures.
81% of 181 Steam reviews are positive$9.99
Alien Shooter - Last Hope
New chapter in history of the legendary game, including 10 story missions.
77% of 328 Steam reviews are positive$4.99
Perilous Warp
Perilous Warp is a fast-paced indie retro-shooter inspired by the classic 3D-actions.
72% of 369 Steam reviews are positive$14.99
Alien Attack
You are a space trooper. Your crew finished the cleaning mission and left you alone by accident. Now you are surrounded by aliens.
82% of 182 Steam reviews are positive$1.99
It came from space and ate our brains
It came from space and ate our brains is a unique Arcade top-down shooter.
79% of 168 Steam reviews are positive$2.49
Survive in Space
The game is spread over 50 different levels, and Sasaki must fight through them all to redeem his people.
68% of 223 Steam reviews are positive$4.99
Newest games like Gastro Force
The Last Salvage Squad
Battle enemy forces reminiscent of alien weapons from retro sci-fi works in this single-player 2.5D FPS.
98% of 577 Steam reviews are positive$9.99
Assassin Of Aliens
Play as space warrior in this 2d person sci-fi shooter game.
80% of 10 Steam reviews are positive$3.99
Starship Troopers: Ultimate Bug War!
A fast, bloody retro shooter where you mow down Arachnids across open battlefields, with a story told through Federation propaganda.
91% of 1,432 Steam reviews are positivePlayers online now: 36$12.49
Palpus X Annihilation
Isometric action shooter with light RPG elements. Brutally kill tons of alien monsters, find over a dozen powerful weapons, skill up your hero &…
96% of 78 Steam reviews are positive$5.99
Locum Tenens
Originally made for PSP in 2025. Full PC Steam port to modern systems. Variety of enemies, weapons, bosses and levels.
100% of 8 Steam reviews are positive$2.99
Mala Petaka
A 2D Pixel Art Shooter-inspired sci-fi FPS runs on GZDoom. You play as 'Petaka', an angry amnesiac that's on a journey to revive his memory by…
100% of 85 Steam reviews are positive$14.99
Galaxy Highways
An indie story-driven space shooter with intense battles, escalating enemy waves, and massive boss fights.
95% of 62 Steam reviews are positive$9.99
Operator8
An unparalleled alien invasion has overwhelmed the Mining Block Facility on the moon Triton, leaving only death and horror in its wake.
82% of 51 Steam reviews are positive$6.99
Son of a Gun
A retro-inspired, action packed, twin-stick shooter full of bullets, blood and explosions.
78% of 80 Steam reviews are positive$9.99
Extraneum
Extraneum is an old-school, sci-fi single-player first person shooter with an emphasis on exploration and secret hunting.
94% of 115 Steam reviews are positive$14.99
Exophobia
Explore and fight your way through a crashed human spaceship infested with relentless hordes of aliens as you become more powerful with exciting…
86% of 106 Steam reviews are positivePlayers online now: 1$14.99