Top similar games like Promethium:
Promethium $7.99
Inspired by classic Commodore 64 and arcade games, Promethium is a hard-as-nails retro inspired side-scrolling shoot-em-up that takes place over numerous levels that get harder and harder. If you’re after a nice calm casual game this isn’t it!
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Rigid Force Alpha$19.99
Classic shoot’em up action in modern 3D! Blast off to take down hordes of infected aliens and dreadful machines programmed on waging an intergalactic war against mankind!

Armada Skies$1.99
Buy weapons and ship upgrades. Fly through the skies, collect powerups and gun down wave after wave of enemies. Today, you own the skies!

Rocket Blasters$0.99
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XenoRaptor$9.99
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The Core Message$1.99
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Galaxy on Fire 2™ Full HD$7.99
A hyperdrive malfunction sends Keith T. Maxwell tumbling through space and time to fight for his life against a mysterious alien armada that is wreaking havoc.

Sector AssaultFREE
In this arcade space shooter, combine weapons and equipment to create the perfect loadouts. Battle an enemy fleet as diverse as your own arsenal, dodging cruise missiles, phasing through lasers, and ramming targets as you fight to reclaim the sector!

Star Singularity$14.99
A space action-adventure unlike any other: navigate your spacecraft through a galactic-scale mystery. Make sure to loot, craft and upgrade your space fleet. Play the story campaign or test your skills in vicious arena modes against AI opponents.

Thunder Kid II: Null Mission$9.99
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Sunrider: Mask of ArcadiusFREE
As Captain Kayto Shields, embark on a galactic voyage of heroism and survival. With his home world destroyed and his nation conquered, the inexperienced Captain Shields, and his newly minted vessel, the Sunrider, are left as the only hope against a galactic evil intent on subjugating all sentient life.

MOTHERGUNSHIP$24.99
MOTHERGUNSHIP is a bullet-hell FPS where you craft your own guns, fight gigantic bosses, and defeat a robotic alien armada that conquered Earth. Face off against overwhelming odds in brutal, non-stop combats where thinking on your feet is the only way to survive.

Vosaria: Lair of the Forgotten$9.99
A pump-action 2D side-scrolling game with different enemy types. Along with a jump-to-the-roof mechanic that spices up the combat. Avoid traps, survive enemy encounters, and upgrade your weapons and gear to overcome the challenges.

UfoPilot : The Phadt Menace - Steam Edition$4.99
A sci-fi retro side-scrolling shoot-em-up / rescue game.

Graceful Explosion Machine$12.99
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Things That Bounce and Explode$3.99
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Coreupt$24.99
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Gravity Circuit$16.99
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Jamestown+$17.99
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Rivals of Aether$29.99
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Opalescence$2.99
The colorful top-down shooter/bullet-hell

Starfighter Neon$0.99
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Dextram$5.99
This arcade shoot 'em up has no shooting and you can only turn right. Avoid waves of enemies and get points as they crash into each other. Pick up power-ups, such as a large laser or a force field to destroy the enemies. Die, get a score and repeat to get a higher score the next run.

Frustrate-a-ball$1.99
Its the most frustrating paddle and ball game you've ever played but we guarantee you'll want just one more go!

Endless Horizon$0.99
Endless Horizon is a high octane arcade game of speed, precision and perfect timing.

Gun-REViper$14.99
This is a 2.5D vertical scrolling shooting game. Use your ingenuity to fight your way to a high score.

Bat BotsFREE
Enjoy a modern take on timeless arcade action with Bat Bots, a nostalgic shooter inspired by the classics. Take down waves of robotic bats using precise aim and quick reflexes. Engage in solo play, challenge your friends and family, or work together to defend against the oncoming waves.

Voidrun$8.99
Voidrun is a fast-paced bullet-hell arcade game where you have to encircle your enemies to defeat them.

Super Mega Space Blaster Special$0.99
A modern take on the retro arcade shooter. Super Mega Space Blaster Special is a fast-paced frantic blast of a shoot 'em up (shmup). Played alone or in local coop the game is addictive and will keep you coming back to unlock the next ship or beat your high-score.

CARSTEROIDS$4.99
In a dark future marked by humanity's expansion to the asteroids, cars emerge as protagonists for a thrilling vehicular combat game show.

PangaroidsFREE
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Dimension Drive$12.99
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Ghost Grab 3000$3.99
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First Person Hooper$4.99
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CyberRush$0.99
CyberRush offers a mix of roguelike cyberpunk streets and a series of handcrafted levels with unique challenges. Outpace the police, weave through obstacles and missile showers, have epic boss battles, and experience the rush in this intense rage-driving adventure. Ready, Set, CyberRush!

Marble Skies$9.99
Marble Skies is a fast paced 3D-platformer where you control your marble through various levels and try to get the best time for each one. Complete all the levels in your own time, or challenge your friends to get on top of the leaderboards!

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Collection of a few arcade classics, remade with a fresh and friendly looking art style and a beautiful soundtrack.

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Zolg$0.99
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Scrap Attack VR$0.99
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GUN&DUNFREE
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Dungeon Fall$1.99
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DUCKLYTE$0.99
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