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Games Like Polybius Invaders

60+ similar titles based on shared tags and player behavior. Themes include Action, Shoot 'Em Up, Arcade, Space.

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  1. #1 Space Moth: Lunar Edition
    97% matchPositive89% of 36 reviews2021
    Dev: 1CC GamesPub: Chorus Worldwide Games
    Windows

    1CC Games’ first shoot ’em up returns with totally overhauled visuals, all-new enemies and attacks, a deeper scoring system, remixed soundtrack and fresh player powers. Space Moth: Lunar Edition is the ultimate version of the beloved cult classic.

    Why similar: Psychedelic 23.6%, Shoot 'Em Up 20.2%, Arcade 10.9%, Bullet Hell 10.3%, Retro 10.1%

  2. #2 My Nuclear Octopus
    96% matchPositive100% of 10 reviews2020
    Dev: Tea Monster Games
    Windows

    My Nuclear Octopus is a psychedelic retro arcade game for fans of pure out-and-out arcade blasters that takes two minutes to learn and hours to master! It's an overload of sight and sound for you to lose yourself in. Can you make it to the top of the leaderboard?

    Why similar: Psychedelic 38.8%, Retro 18.1%, Shoot 'Em Up 12.1%, Arcade 9.4%, Space 8.9%

  3. #3 Orbital Siege
    96% match1 user reviews100% of 1 reviews2025
    Dev: Orbitforge Interactive
    Windows

    Reclaim the arcade. This is a high-octane space shooter where vibrant pixel art meets relentless alien armadas. Master your orbital defenses and survive the ultimate galactic onslaught.

    Why similar: Shoot 'Em Up 20.4%, Retro 17.4%, Arcade 12.9%, Space 11.6%, Old School 10.4%

  4. #4 AstroRage2049
    94% match5 user reviews100% of 5 reviews2026
    Dev: CJPub: Outofthematrix
    Windows

    A short space shooter game that you can finish in your break time with beginner-friendly gameplay and some special features.

    Why similar: Psychedelic 19.7%, Shoot 'Em Up 18.6%, Arcade 13.9%, Shooter 10.9%, Bullet Hell 10.8%

  5. #5 I, AI
    94% matchMostly Positive72% of 69 reviews2020
    Dev: Satur EntertainmentPub: Satur Entertainment
    Windows

    Classic scrolling shooter with modern graphics. You are self-aware AI. You were created on space military station developing weapons. Now your goal is to break out of the lab and win your freedom.

    Why similar: On-Rails Shooter 21.8%, Shoot 'Em Up 16.2%, Space 13.1%, Arcade 9.1%, Bullet Hell 8.6%

  6. #6 The Core Message
    95% matchNo user reviews2020
    Dev: Freedom Software
    Windows

    Combining retro puzzles and a arcade space shooter. You and your crew found strange materials in the galaxy core to upgrade your ship to the most powerful. While collecting core materials you came across something unbelievable ... The Core Message. The Core Message changes everything.

    Why similar: Shoot 'Em Up 22.7%, Space 18.6%, Retro 17.2%, Arcade 13.3%, Bullet Hell 12.6%

  7. #7 Space Invaders Extreme
    92% matchVery Positive88% of 261 reviews2018
    Dev: TAITO CORP.Pub: KOMODO
    Windows
    Median: 1.9 hrsMean: 3.0 hrs≥1hr: 64%

    The critically acclaimed update to the Space Invaders franchise has arrived to invade Steam with greatly improved graphics and audio! Packed with pulsing, vibrant visuals enhanced further by interactive sound. The invaders have evolved, the question is: can you keep up?

    Why similar: Psychedelic 17.8%, Shoot 'Em Up 17.7%, Space 12.5%, Arcade 10.4%, Bullet Hell 9.3%

  8. #8 Blaster Panic
    93% matchNo user reviews2023
    Dev: Pirate Dog Games
    Windows

    Blaster Panic is a 2D space shooter where you defend your home base against an onslaught of enemies. Fight through ongoing boss battles. Last as long as you can to dominate the leaderboard.

    Why similar: Shoot 'Em Up 18%, Psychedelic 14.7%, Space 14.1%, Bullet Hell 10.4%, Retro 10.3%

  9. #9 Syder Arcade
    91% matchVery Positive84% of 692 reviews2013
    Dev: Studio Evil
    Windows · Mac · Linux
    Median: 3.2 hrsMean: 4.5 hrs≥1hr: 90%

    Killing zombies never gets old, but sometimes you just need a break. Get back to some serious old-school gaming with Syder Arcade! Syder Arcade is a love letter to Amiga games of the ‘90s, no coins, no upgrade grinding, just your tenacity and a motherload of alien invaders.

    Why similar: Shoot 'Em Up 33.3%, Arcade 12.8%, Space 12%, Bullet Hell 9.8%, Retro 9.6%

  10. #10 Zaxterion: Space Frenzy!
    91% matchPositive80% of 10 reviews2022
    Dev: ZaxtorGameS
    Windows

    You play as a young boy who dreams of being a famous astronaut who discovers alien worlds and life. One hot summer day, you fall asleep and into a terrifying dream made up of your worst childhood fears. Can you survive this nightmare of asteroids, space spiders, deadly skulls & more?

    Why similar: Shoot 'Em Up 24.3%, Arcade 15.6%, Space 15.5%, Retro 14.3%, Old School 12.3%

  11. #11 Syder Reloaded
    89% matchPositive96% of 23 reviews2025
    Dev: Studio Evil
    Windows

    Syder Reloaded revives the Syder series in this love-letter to 90s Amiga shmups with upgraded graphics and refined gameplay. Challenging levels, a fleet of ships and a motherload of alien invaders. Get back to your roots and curse at your monitor in this skills-first shooter.

    Why similar: Shoot 'Em Up 20.3%, Space 15.8%, Retro 13.5%, Arcade 11.8%, Bullet Hell 10.3%

  12. #12 Space Warpster
    90% matchNo user reviews
    Dev: AMAMiZU games
    Windows · Linux

    A fast-paced retro arcade shooter inspired by classic 1980s side-scrolling space combat. Weave through organic obstacles, survive relentless enemy waves, and defeat powerful end-level bosses in a pure, skill-driven singleplayer experience.

    Why similar: Shoot 'Em Up 23.6%, Retro 14.6%, On-Rails Shooter 14.5%, Arcade 13%, Space 11.8%

  13. #13 Cosmo Chaser
    89% match2 user reviews50% of 2 reviews2019
    Dev: Choi Jaewook
    Windows

    Cosmo Chaser is space fighter action game which presents restless shooting battle. It demonstrates new style of vertical scroll shooter by presenting classic arcade action in 3D space.

    Why similar: Shoot 'Em Up 23.6%, Space 17%, Retro 16.9%, Bullet Hell 12.3%, Arcade 10.5%

  14. #14 Crazy Invader ShootEm Down
    88% match6 user reviews83% of 6 reviews2021
    Dev: Crazy Retro Games
    Windows

    Enjoy fast paced action in this retro inspired arcade ShootEm Up Style game

    Why similar: Shoot 'Em Up 26.1%, Retro 21.9%, Arcade 18%, Space 14%, Old School 8.2%

  15. #15 STURMWIND EX
    87% matchPositive81% of 42 reviews2019
    Dev: b-alive
    Windows

    STURMWIND EX is a shoot-em up in the tradition of old arcade games. If it moves - shoot it!

    Why similar: Shoot 'Em Up 23%, Space 16%, Retro 14.3%, Arcade 12.1%, Bullet Hell 11%

  16. #16 Space Maxwell: Arcade
    86% match2 user reviews50% of 2 reviews2022
    Dev: Dreamland Games
    Windows

    Shoot your enemies and try not to let them multiply themselves and turn the game into a chaotic space battle! Space Maxwell is an arcade shooter where your spaceship has the ability to destroy or to multiply your enemies. Climb the leaderboard and try to survive as long as you can!

    Why similar: Shoot 'Em Up 20.9%, Psychedelic 18.5%, Space 11.8%, Arcade 11.7%, Bullet Hell 11.6%

  17. #17 ShapeNeon Chaos
    85% matchPositive94% of 32 reviews2021
    Dev: Beni Games
    Windows

    ShapeNeon Chaos is an old school style space-shooter. You are a ship facing off waves of deadly enemies. This game was made to give you a shot of adrenaline in a couple of minutes. Lots of bullets and neon in an arcade psychedelic shooter!

    Why similar: Psychedelic 23.2%, Shoot 'Em Up 17.9%, Space 12.4%, Arcade 11.7%, Retro 10.9%

  18. #18 Absolute Blue
    86% matchMostly Positive70% of 54 reviews2018
    Dev: Jochen HeizmannPub: Asylum Square
    Windows

    Sidescrolling Shoot’em’up that will transport you back into the 90s (and space).

    Why similar: Shoot 'Em Up 18.1%, Psychedelic 15.9%, Space 12.7%, Arcade 10.1%, Bullet Hell 9.2%

  19. #19 ZAKESTA-Z
    83% matchPositive100% of 43 reviews2024
    Dev: zakichi
    Windows

    Vertical scrolling shooter with all 5 pages

    Why similar: Shoot 'Em Up 24.5%, Retro 16.7%, Shooter 12%, Arcade 10.5%, Bullet Hell 9%

  20. #20 Space Trail Fireworks
    84% match1 user reviews100% of 1 reviews2024
    Dev: WRDSLYR Crew
    Windows · Linux

    Drag trails, make explosions, survive as long as you can! Space Trail Fireworks is a fun arcade-like, snake-like that is easy to learn. Best on touchscreen or with mouse.

    Why similar: Psychedelic 31.2%, Space 18.6%, Arcade 13%, Old School 11.5%, Shoot 'Em Up 11%

  21. #21 Vektor Z
    84% match5 user reviews60% of 5 reviews2022
    Dev: ZaxtorGameS
    Windows

    Vektor Z brings fast and furious retro space blasting action to Steam! Blast your way through endless waves of asteroids and enemies to write your name among the stars! Vektor Z offers a rogue-like arcade action game where you'll improve your progress every time you play!

    Why similar: Shoot 'Em Up 22.7%, Arcade 16.6%, Bullet Hell 13.3%, Retro 11%, Space 10.9%

  22. #22 Grid Ranger
    81% matchPositive84% of 49 reviews2025
    Dev: Pixeljam
    Windows · Mac

    A shortform heart-pounding 3D shmuplike. Level up your mouse dexterity and see what lies beyond the grid...

    Why similar: On-Rails Shooter 21.5%, Shoot 'Em Up 17.9%, Psychedelic 16.9%, Bullet Hell 9%, Arcade 8.8%

  23. #23 Atomic Guardians
    82% match4 user reviews100% of 4 reviews2021
    Dev: Mosh Jason Games
    Windows

    ATOMIC GUARDIANS is a fully CO-OP arcade retro shoot 'em up, where one player flies the ship, and the other player mans the shields. Fight your way through a never ending horde of Brutal Bosses, Alien Monsters and Gigantic Asteroids as you rack up a new world-wide high score. Play with up to three friends, and see how long you can last!

    Why similar: Shoot 'Em Up 20.1%, Arcade 13.3%, Space 12.8%, Retro 11.8%, Bullet Hell 11.2%

  24. #24 Monkey King: Master of the Clouds | 中華大仙
    82% matchMostly Positive73% of 22 reviews2018
    Dev: Starfish-SD Inc.Pub: Retroism
    Windows

    Join Micheal Chang, the Monkey King, on his journey through famous landmarks of ancient China and fight off mythical creatures and legends in this classic arcade shooter.

    Why similar: Shoot 'Em Up 30.3%, Retro 19.4%, Arcade 16.4%, Action 13.4%, Shooter 10.9%

  25. #25 Echoes+
    79% matchVery Positive92% of 857 reviews2015
    Dev: Binary Zoo
    Windows · Mac
    Median: 24 minMean: 2.7 hrs≥1hr: 27%

    Echoes+ is an intense retro action space shooter that will test your reaction and concentration levels to the max!

    Why similar: Shoot 'Em Up 28.2%, Bullet Hell 15.9%, Space 14.4%, Arcade 11.8%, Action 11.7%

  26. #26 Enemy Mind
    79% matchVery Positive85% of 797 reviews2014
    Dev: Schell Games
    Windows
    Median: 3.0 hrsMean: 4.0 hrs≥1hr: 80%

    A retro shooter with a new power: the power to become any ship.Lost in the depths of space, you are a being of pure psychic energy with the uncanny power to take over and control anything you see in order to survive.Built for PC, Enemy Mind lets you battle your way through 70+ waves of challenging enemies.

    Why similar: Shoot 'Em Up 22.7%, Space 19.1%, Retro 13.2%, Arcade 11%, Shooter 10.9%

  27. #27 Power-Up
    81% matchMixed58% of 263 reviews2014
    Dev: Psychotic Psoftware
    Windows
    Median: 5.0 hrsMean: 5.6 hrs≥1hr: 97%

    A fast-paced retro shoot-'em-up featuring evolving weapons, intense arcade combat and massive bosses — from one-man studio Psychotic Psoftware.

    Why similar: Shoot 'Em Up 26.9%, Retro 16.1%, Space 15%, Shooter 9.4%, Bullet Hell 9.3%

  28. #28 A Blast From The Past
    77% matchPositive100% of 19 reviews2023
    Dev: Happy Cactus Games Limited
    Windows · Mac

    A Blast from the Past is a stunning, classic arcade shooter. Includes gameplay modes for the casual gamer through to "Tournament Mode" for Hi-Score hunters! With 4K/360Hz+ support, experience smooth as silk gameplay in this dazzling arcade blaster with something for every arcade-going fan!

    Why similar: Shoot 'Em Up 28.9%, Arcade 14.5%, Shooter 12.6%, Space 11.8%, 2.5D 11.1%

  29. #29 Space Defense Special Force - The Origin of the Union
    80% matchNo user reviews2024
    Dev: Ninetales Studios
    Windows

    Frenetic 2D action in the style of Space Invaders! Customize your spaceship, face hordes of enemies, and challenge yourself in multiple modes, including Campaign, Arcade, Invasion, and Survival. Upgrade your ship, collect power-ups, and face unique challenges in every battle.

    Why similar: Shoot 'Em Up 23.3%, Retro 18.7%, Space 18.3%, Arcade 15.2%, Bullet Hell 8.4%

  30. #30 Galencia
    78% matchPositive100% of 25 reviews2018
    Dev: Jason Aldred
    Windows

    The 2017 Commodore 64 Game of the Year now available on Steam!

    Why similar: Shoot 'Em Up 27.5%, Space 23.8%, Retro 21.4%, Action 15.5%, Shooter 11.9%

  31. #31 Hypnorain
    78% matchMixed65% of 20 reviews2016
    Dev: Keyreal
    Windows
    Median: 3.5 hrsMean: 3.6 hrs≥1hr: 95%

    Hypnorain is a vertical bullet hell shooter. The player guides a character through handcrafted levels, shooting and dodging their way through an army of enemies and their mesmerizing bullet patterns.

    Why similar: Psychedelic 19.1%, Shoot 'Em Up 16.8%, Retro 15.1%, Bullet Hell 12.8%, Arcade 9.2%

  32. #32 Feeble Light
    76% match9 user reviews78% of 9 reviews2023
    Dev: Panda Indie StudioPub: Eastasiasoft Limited
    Windows

    Blast off as a little star trying to rid the cosmos of angry celestial beings in Feeble Light, a 3-tone pixel art shoot’em up where minimalistic presentation makes way for precision controls and fluid animation!

    Why similar: Shoot 'Em Up 29.7%, Bullet Hell 14.1%, Arcade 13.8%, Shooter 12.5%, Retro 8.8%

  33. #33 Asteroids
    75% matchPositive96% of 26 reviews2022
    Dev: Play Asteroids
    Windows

    Another version of the classic Asteroids game

    Why similar: Shoot 'Em Up 23%, Arcade 16.8%, Shooter 13.2%, Space 12.1%, Retro 10.9%

  34. #34 Andromeda Wing
    77% matchMixed60% of 20 reviews2017
    Dev: Adam John Adkins
    Windows

    An action-packed retro arcade shoot 'em up featuring organic and bio-mechanical alien life, including ammonites, centipedes and spiders!

    Why similar: Shoot 'Em Up 26.2%, Space 16.9%, Retro 16.5%, Arcade 12%, Action 12%

  35. #35 Invaliens
    76% match1 user reviews0% of 1 reviews2020
    Dev: Galactic Droids Ltd
    Windows

    Retro arcade classic, Defeat a million invaders from another dimension in this side scrolling shoot'em up.

    Why similar: Shoot 'Em Up 27.8%, Bullet Hell 12.8%, Space 12.3%, Arcade 11.9%, Shooter 10.8%

  36. #36 Super Galaxy Squadron EX Turbo
    75% matchVery Positive84% of 602 reviews2015
    Dev: SynsetPub: New Blood Interactive
    Windows · Linux
    Median: 3.0 hrsMean: 3.4 hrs≥1hr: 85%

    Super Galaxy Squadron is a fast-paced vertical shooter designed for human beings as well as SHMUP veterans. Featuring multiple game modes, a challenging but merciful difficulty curve, forgiving health system, and SEVENTEEN playable ships.

    Why similar: Shoot 'Em Up 30.4%, Retro 17.7%, Bullet Hell 16%, Arcade 11.5%, Space 7.1%

  37. #37 Distant Space
    73% matchVery Positive86% of 2,983 reviews2016
    Dev: PixelMouse
    Windows
    Median: 3.7 hrsMean: 9.4 hrs≥1hr: 79%

    Distant Space are present the arcade game of cosmic fights in arcade style of the 80's, this is a game where you can control the spaceship and forced to destroy extraterrestrials, which are moving in the certain order.

    Why similar: Shoot 'Em Up 28.3%, Space 21.6%, Arcade 14.9%, Retro 10.7%, Shooter 6.6%

  38. #38 Lilac 0
    70% matchVery Positive95% of 73 reviews2025
    Dev: Bullet Prince
    Windows

    The machine world of Molybdion has fallen into disarray. As Nidhogg eats the root of the planet, unending wars rage on the surface! Slice your way through hordes of metallic foes in five frantic levels, defeat fearsome bosses, and dodge countless bullets in this vintage vertical shoot 'em up.

    Why similar: Shoot 'Em Up 26.4%, Arcade 15.4%, Bullet Hell 13.1%, Retro 11.9%, Shooter 10.6%

  39. #39 Return Home
    74% match6 user reviews100% of 6 reviews2019
    Dev: Verran
    Windows

    Return Home is an abstract horizontal shooter with dynamic levels and metaphorical explosions. The game is randomised and altered according to how well you play.

    Why similar: Psychedelic 28.1%, Shoot 'Em Up 17.7%, Arcade 12.6%, Retro 11%, Bullet Hell 8.9%

  40. #40 Nevultra
    73% match4 user reviews100% of 4 reviews2023
    Dev: Zoblin Multimedia
    Windows

    Nevultra is an exciting shoot'em up that will take you back to the 8bit/16bit era. The protagonist, Nina, needs your help to reach her destination in deep space.

    Why similar: Shoot 'Em Up 28.4%, Arcade 15.5%, Bullet Hell 11.6%, Space 11.1%, Retro 10.8%

  41. #41 Star Trapper FX
    73% match2 user reviews100% of 2 reviews2022
    Dev: Marshall Games
    Windows

    Pseudo 3D spaceship shooter

    Why similar: On-Rails Shooter 31.1%, Space 14.6%, Shoot 'Em Up 12%, Shooter 11.2%, 2.5D 10.5%

  42. #42 Ex-Zodiac
    70% matchVery Positive94% of 999 reviews2022
    Dev: MNKYPub: Pixeljam
    Windows · Mac · Linux
    Median: 36 minMean: 1.0 hrs≥1hr: 34%

    A fast-paced low-poly 3D rail shooter heavily inspired by classics of the early 90's. Join protagonist Kyuu as she fights to free the worlds of the Sanzaru Star System, overrun by the intergalactic terrorist organization known as Zodiac.

    Why similar: On-Rails Shooter 27%, Shoot 'Em Up 19.6%, Space 13.6%, Arcade 11.8%, Retro 11.5%

  43. #43 Red Horizon
    74% matchMostly Negative36% of 42 reviews2019
    Dev: Allen Games
    Windows · Mac

    Red Horizon is an addictive space shmup game. Heavily influenced by the classics of the past, Red Horizon takes a modern spin on the genre combining it with some subtle Rogue-like elements to provide players with a unique experience every time they play.

    Why similar: Shoot 'Em Up 16.5%, Space 15.4%, Retro 12.8%, Arcade 10.1%, Old School 9.9%

  44. #44 Cosmic Cruiser
    71% match1 user reviews100% of 1 reviews2022
    Dev: ImaginePub: Pixel Games UK
    Windows

    In this unique shooter from 1984. take on the role of a pilot of an out-dated Cosmic Cruiser, fighting to rescue the crew of a distant space station that had been captured by a raiding party from the sinister Rallom Empire.

    Why similar: Retro 19.7%, Shoot 'Em Up 18.3%, Shooter 15.7%, Arcade 14.5%, Space 13.8%

  45. #45 Alpha Warrior
    71% match1 user reviews100% of 1 reviews2023
    Dev: Smobile
    Windows

    Alpha Warrior is a retro, space shooter where the player engages in flight combat with enemy terrestrials and arcade style bosses.

    Why similar: Shoot 'Em Up 26.6%, Arcade 19.2%, Space 16.9%, Shooter 14.8%, Old School 11.8%

  46. #46 Space Blade
    72% matchNo user reviews
    Dev: Mountain Of Games
    Windows

    Single player, top down, retro space-shooter, destroy enemies and fight bullet-hell bosses, upgrade during runs and after them to progress further and faster.

    Why similar: Shoot 'Em Up 30.1%, Space 14.1%, Bullet Hell 13.1%, Arcade 12.4%, Shooter 11.4%

  47. #47 EGGCONSOLE ZANAC EX MSX2
    68% match3 user reviews100% of 3 reviews2026
    Dev: D4Enterprise Co.,Ltd.
    Windows

    The Zanac battle, which was supposed to have ended, was not over. To suppress the reactivated organic intelligence, Zanac takes flight once again!

    Why similar: Shoot 'Em Up 24%, Arcade 17%, Shooter 13.3%, Bullet Hell 11.6%, Retro 10.5%

  48. #48 PRISMIDIA: Spirit of the Rift
    72% matchNo user reviews
    Dev: Chain Damage Games
    Windows

    PRISMIDIA: Spirit of the Rift is a sci-fi shoot 'em up game in the style of arcade classics. Dodge barrages of attacks, survive bullet hell bosses, and save Prismidia!

    Why similar: Shoot 'Em Up 24.3%, Bullet Hell 13.5%, Arcade 12.6%, Space 11.6%, Shooter 11.3%

  49. #49 Z-Warp
    68% matchPositive100% of 25 reviews2022
    Dev: Panda Indie StudioPub: Eastasiasoft Limited
    Windows

    Z-Warp is an intense vertical shoot’em up presented in retro pixel art style, featuring frenetic arcade-inspired action where blasters, bombs and KILLER specials are your only allies.

    Why similar: Shoot 'Em Up 28.7%, Bullet Hell 16.9%, Retro 15.9%, Shooter 12.7%, Space 12.6%

  50. #50 Dyflexion
    68% match5 user reviews100% of 5 reviews2022
    Dev: Pisces Studios
    Windows · Linux

    A vertical scroll shooter where deflecting enemy projectiles is key to success.

    Why similar: Illuminati 19.4%, Shoot 'Em Up 18.5%, Arcade 10.9%, Old School 10.9%, Bullet Hell 10.3%

  51. #51 Defender's Squad: The Last Ride
    66% match3 user reviews100% of 3 reviews2025
    Dev: JMC
    Windows · Linux

    Defender's Squad is a sci-fi vertical scrolling shooter 2D that combines 7 different levels. Play Solo and pick one of the 3 ships to kill enemies and save the earth from aliens.

    Why similar: Shoot 'Em Up 24.3%, Space 18.5%, Arcade 12.5%, Shooter 12.1%, Retro 11.8%

  52. #52 Asteroid 69
    70% matchNo user reviews2026
    Dev: Moonlight Workshop LLC
    Windows

    Rogue asteroids have been detected heading toward earth. You are the pilot of experimental spacecrafts to destroy the impending danger. Fight solo or up to 4 players. Outerspace is full of lethal rocks and strange creatures out to stop you. Don't let your planet down!

    Why similar: Shoot 'Em Up 29.1%, Arcade 14.8%, Shooter 13.2%, Space 13.1%, Retro 9.1%

  53. #53 The Battle of Aurinoxia
    65% matchPositive75% of 12 reviews2026
    Dev: N11 Games Division
    Windows

    A retro space shoot 'em up with pixel art graphics, unique enemies, tough angry bosses, and a killer soundtrack. You are among the first pilots to arrive in the system to mount the counteroffensive against the aggressors. Get out there and show these aliens the price for messing with The Alliance!

    Why similar: Shoot 'Em Up 26.4%, Bullet Hell 15.7%, Arcade 14.2%, Shooter 12.4%, Space 11.3%

  54. #54 Stranded in the Abyss
    69% matchNo user reviews2027
    Dev: studio cyber turtle
    Windows

    Stranded in the abyss is a shoot-em-up in a unique sci-fi sci-environment where you command a massive squad of ships in an endless war Against an evil rebellion. Shoot command and bomb your way through hundreds of enemy fighters, capital ships, and skirmishes.

    Why similar: Shoot 'Em Up 28.9%, Arcade 15%, Bullet Hell 14.4%, Space 14.1%, Retro 8.8%

  55. #55 Railgunners
    65% matchVery Positive92% of 60 reviews2023
    Dev: Expresso Studios
    Windows

    Railgunners is a shooter built to highly customizable difficulty levels. Fight your way through hundreds of enemy ships, and help humanity fight back against the alien invasion!

    Why similar: Shoot 'Em Up 22%, On-Rails Shooter 18%, Retro 14.3%, Bullet Hell 11%, Arcade 10.9%

  56. #56 Space way: Echo of the Galaxy
    65% match8 user reviews100% of 8 reviews2025
    Dev: My general
    Windows

    In this retro space shooter you will have the opportunity to take control of a space fighter and crush waves of enemies. Show all your agility and reaction!

    Why similar: Shoot 'Em Up 27.2%, Bullet Hell 13%, Space 12%, Arcade 11.8%, Shooter 10.7%

  57. #57 Giant Enemy Robot Crabs
    69% matchNo user reviews2026
    Dev: Raging Slime
    Windows

    Crush the countless crabs while blasting your way through the cancer zone!

    Why similar: Space 26.3%, Shoot 'Em Up 25.7%, Arcade 16.5%, Shooter 10.1%, Action 6.7%

  58. #58 Caterpilla (Spectrum/VIC-20)
    67% match2 user reviews50% of 2 reviews2022
    Dev: Ocean SoftwarePub: Pixel Games UK
    Windows

    In this simple riff on an arcade classic, released in 1983 for the ZX Spectrum by famed game developer/publisher Ocean Software, shoot the deadly Caterpilla as it weaves its way down the screen, while also contending with mushrooms that block the way, and a fearsome spider!

    Why similar: Shoot 'Em Up 27.5%, Retro 24.3%, Arcade 14.9%, Shooter 13.1%, Old School 7.7%

  59. #59 Stellar Nemesis
    69% matchNo user reviews2026
    Dev: Perun Games Studio
    Windows

    A high-definition arcade shooter blending old-school action with modern polish. Battle across the Solar System, upgrade your weapons, and unlock tougher challenges in Nemesis Mode - all set to a hypnotic, retro-electro soundtrack.

    Why similar: Retro 20%, Old School 17.5%, Shoot 'Em Up 17.1%, Shooter 11.4%, Bullet Hell 11.1%

  60. #60 Bezier
    67% matchMostly Positive77% of 110 reviews2016
    Dev: Philip BakPub: Thalamus Digital
    Windows
    Median: 12 minMean: 2.7 hrs≥1hr: 26%

    Bezier is a dual stick blaster set inside a vast computer built deep underground. The story traces the principal's escape from this "Noah's Ark" gone wrong. A simple shooter on the surface, the deeper narrative pulls in his relationship between evolution and god, family and love.

    Why similar: Psychedelic 22.9%, Shoot 'Em Up 19.7%, Space 14.3%, Arcade 10%, Bullet Hell 10%

Polybius Invaders cover art

Games Like Polybius Invaders

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