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Games Like Project NEUNLEBEN Alpha Defence Force

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

Project NEUNLEBEN Alpha Defence Force header art

An attack by an alien species, emerging from a dimensional rift, has begun! Shoot 'em up your way through 11 levels with the help of the "Alpha Defence Force", consisting of three cybernetically enhanced cats, and defeat screen-sized bosses in this retro 16-bit-inspired Shmup.

Reviews: No user reviews — 50%
Released: Coming soon
Developer: Fail Round Games
Genres: Action, Casual, Indie
Platforms: Windows

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  1. #1 Rendering Ranger™: R² [Rewind]
    97% matchPositive84% of 32 reviews2025
    Dev: Limited Run GamesPub: Ziggurat
    Windows

    You are the Rendering Ranger, a special forces soldier defending Earth from a devastating alien invasion through nine levels of action platforming as well as blisteringly fast horizontal shooter stages. Originally developed for Super Famicom by Manfred Trenz, creator of the Turrican series.

    Why similar: Shoot 'Em Up 30.8%, Side Scroller 13.6%, Arcade 8.8%, 1990's 7.8%, Pixel Graphics 7.4%

  2. #2 GUN DOG ROCK RAPID
    96% matchPositive100% of 11 reviews2020
    Dev: leimonyaPub: leimonya
    Windows

    Super simple 2D shooter game! Use the two types of shots to push forward.Kick out the swarming zakos and take on the powerful bosses.7 crazy worlds are waiting for your cat!?

    Why similar: Shoot 'Em Up 29.1%, Side Scroller 13.6%, Arcade 12.1%, Shooter 8.3%, 1990's 8.2%

  3. #3 Spacewing War
    96% matchPositive92% of 13 reviews2022
    Dev: Pneuma GamesPub: Eastasiasoft Limited
    Windows

    Blast off for a retro shoot’em up experience filled with clever twists and secrets!

    Why similar: Shoot 'Em Up 31.1%, Side Scroller 17%, Arcade 10.3%, Shooter 7.7%, Action 7.4%

  4. #4 Gates of Zendocon
    95% match4 user reviews75% of 4 reviews2022
    Dev: Epyx, Inc.Pub: Pixel Games UK
    Windows

    In this classic side-scrolling shoot-em-up, originally published in 1989 for the Atari Lynx handheld console, take on the role of a starship pilot trapped in a web of 51 interconnected hostile universes by the evil spider Zendocon.

    Why similar: Shoot 'Em Up 28.2%, Side Scroller 14.6%, Retro 9.9%, Arcade 9.2%, Action 7%

  5. #5 Aqua Kitty - Milk Mine Defender
    94% matchVery Positive86% of 482 reviews2014
    Dev: TIKIPOD
    Windows
    Median: 2.6 hrsMean: 3.4 hrs≥1hr: 78%

    Aqua Kitty is a fast paced retro styled submarine arcade shooter with optional 2 player local Co-op.Blast through hordes of mechanical sea monsters in your kitty sub and defend the deep sea milk mining kittens!THE MILK MUST FLOW!

    Why similar: Shoot 'Em Up 38.1%, Cats 19.8%, Action 10%, Arcade 7.7%, Retro 6.3%

  6. #6 Omni Kitty
    94% matchNo user reviews2026
    Dev: Revolving Lime
    Windows

    This is an action based flappy game turned up to eleven. In the main arcade mode the player is unlocked and able to flap around the length of the screen dodging obstacles, fighting enemies and engaging a stage boss at the end of every level. This is a fully flushed out flappy game.

    Why similar: Shoot 'Em Up 31.7%, Cats 17.2%, Arcade 13.4%, Action 12.9%, 1990's 8.6%

  7. #7 AQUA KITTY UDX
    92% matchVery Positive84% of 72 reviews2023
    Dev: TIKIPOD
    Windows

    AQUA KITTY UDX blasts onto PC in this enhanced Ultra Deluxe Edition including the epic Dreadnought game mode!

    Why similar: Shoot 'Em Up 26.9%, Cats 23.8%, Arcade 11.2%, Action 9.8%, Side Scroller 9.5%

  8. #8 DRUNKEN BARON
    93% matchNo user reviews2025
    Dev: Florian Schäfer
    Windows

    DRUNKEN BARON is a fast-paced 2D arcade shooter inspired by classic flappy-style games. Keep your plane in the air by tapping the button, fly through chaotic corridors, shoot invading aliens, drop bombs, and survive as long as you can!

    Why similar: Shoot 'Em Up 27%, Action 12.4%, Arcade 12.4%, Side Scroller 11.1%, 1990's 8.2%

  9. #9 Habroxia 2
    90% matchVery Positive92% of 63 reviews2021
    Dev: Lillymo Games
    Windows

    Blast off for a sequel that pushes every facet of 2D shoot'em ups to escape velocity!

    Why similar: Shoot 'Em Up 32.2%, Arcade 13.6%, Side Scroller 13.5%, Action 13.1%, Shooter 8.9%

  10. #10 Thunder Tiger
    91% matchNo user reviews2026
    Dev: Incredibly Moot Studio
    Windows

    Thunder Tiger is a fast-paced side-scrolling shoot ’em up, blending 1980s arcade style with futuristic flair. Blast enemies, grab power-ups, and chase high scores in intense 2D stages. Classic retro vibe meets modern gameplay!

    Why similar: Shoot 'Em Up 28.5%, Side Scroller 14.6%, Arcade 10.9%, 1990's 7.1%, Action 7.1%

  11. #11 Super Catboy
    89% matchMostly Positive77% of 389 reviews2023
    Dev: PixelpogoPub: Assemble Entertainment
    Windows · Mac
    Median: 42 minMean: 2.9 hrs≥1hr: 41%

    Super Catboy is an action-packed platformer created in a high-bit pixel art style, combining the best elements of the golden 16-bit platformer era of the 90s with some ‘pawsome’ new mechanics! And let’s not forget; there’s plenty of CAT CONTENT!

    Why similar: Shoot 'Em Up 20.3%, Cats 19.2%, Side Scroller 9.6%, 1990's 8.4%, Pixel Graphics 8%

  12. #12 Electric Crust: Galactic Pizza Delivery
    91% matchNo user reviews2027
    Dev: Swamp City LLC
    Windows

    Fifteen stages of side-scrolling arcade shooting, wrapped around the worst pizza delivery route in the galaxy. Bullet patterns, boss tiers, CRT scanlines, and a rank ladder Ace never asked for. One-time purchase. No ads. No IAP. No data collection.

    Why similar: Shoot 'Em Up 33.3%, Side Scroller 13%, Arcade 11%, Action 9.7%, Old School 7.5%

  13. #13 Frutz
    88% match2 user reviews100% of 2 reviews2026
    Dev: Broken Walls Studios
    Windows · Mac · Linux

    Dodge, dash, and blast through five handcrafted worlds in a fast pixel-art arcade shooter built for score chasing, boss fights, and perfect runs. Free demo available.

    Why similar: Shoot 'Em Up 30.2%, Side Scroller 10.9%, Arcade 10.8%, Pixel Graphics 8.5%, Shooter 6.3%

  14. #14 Venkazoid Blast
    89% match2 user reviews100% of 2 reviews2020
    Dev: Phillip Herrera
    Windows

    You are Vakimoh. They are the Venkazoids. Fight for your life in this quick and brutal arcade-style shooter. Can you escape your cage?

    Why similar: Shoot 'Em Up 38.3%, Arcade 13.4%, Action 11%, Aliens 9.5%, Pixel Graphics 8.7%

  15. #15 SPACEMAN
    86% matchPositive100% of 11 reviews2026
    Dev: Colton Crawford
    Windows · Mac

    SPACEMAN is a short, nostalgic, retro Shoot-Em-Up

    Why similar: Shoot 'Em Up 33.5%, Side Scroller 9.6%, Pixel Graphics 8.9%, 1990's 8.7%, Action 8.5%

  16. #16 Chaos Moon : 1CC Edition
    86% match2 user reviews50% of 2 reviews2024
    Dev: SNOWBALL EFFECT GAMES
    Windows

    A classic style SHMUP in the tradition of 80's and 90's vertical scrolling shooters. Maximize your run and get to the top of the High-score Leaderboard. Can you achieve the rank of Fleet Admiral? It's a challenge. Visit our website for a free playable browser demo of the game.

    Why similar: Shoot 'Em Up 28.2%, Arcade 11.8%, Action 11.4%, Shooter 8.9%, Aliens 7.8%

  17. #17 Habroxia
    85% matchPositive97% of 33 reviews2023
    Dev: Lillymo Games
    Windows

    Blast your way through a myriad of extra-terrestrial incursions in this arcade-style scrolling shooter! Pilot the ship Habroxia through 15 levels featuring intense boss fights, rescue missions, shifting perspectives, and untold surprises.

    Why similar: Shoot 'Em Up 29.6%, Side Scroller 12.9%, Arcade 12.7%, Action 11.7%, Shooter 8.6%

  18. #18 Icarus
    87% matchNo user reviews
    Dev: Denis EvansPub: Japster's Cavern
    Windows

    Icarus, a classic side-scrolling space shoot-em-up tribute! - Thumping soundtrack, Bosses, Multiples, Power-ups, Secrets, BIG levels... ...Give the (free) work in progress / teaser demo a try!

    Why similar: Shoot 'Em Up 34.9%, Side Scroller 15.6%, Aliens 8.7%, Retro 8%, Action 8%

  19. #19 INNBC STARFIGHTER
    84% matchMostly Positive64% of 11 reviews2026
    Dev: Jonathan Fior Pub: Innovative Bioresearch
    Windows

    A free-to-play 90s-style bullet-hell shooter with high-res graphics, unlocked 60+ FPS, single-player campaign, and online co-op multiplayer!

    Why similar: Shoot 'Em Up 26.9%, Side Scroller 14.4%, Arcade 9.7%, Shooter 7.1%, Aliens 7%

  20. #20 Space Warpster
    82% matchPositive100% of 12 reviews2026
    Dev: AMAMiZU games
    Windows · Mac · 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 32.7%, Side Scroller 13.7%, Arcade 11.5%, Retro 7.8%, Pixel Graphics 7.3%

  21. #21 Thundering Skies
    84% matchMostly Positive71% of 21 reviews2017
    Dev: Flat Voxel
    Windows

    A shoot'em up inspired by the 16-bit classics of the genre.

    Why similar: Shoot 'Em Up 27.4%, Side Scroller 13.1%, Arcade 11.4%, Old School 9%, Pixel Graphics 7.3%

  22. #22 Neoteria
    82% match1 user reviews100% of 1 reviews2025
    Dev: Orangepixel
    Windows · Mac · Linux

    A classic shoot-em up where you avoid waves and waves of enemies coming and shooting at you. This is NOT a Bullet hell shooter.

    Why similar: Shoot 'Em Up 29%, Action 11.9%, Old School 11.8%, Retro 9.3%, 1990's 9.3%

  23. #23 Cosmic Wartoad
    81% match2 user reviews100% of 2 reviews2022
    Dev: Ocean SoftwarePub: Pixel Games UK
    Windows

    The Queen of the Cosmic Wartoads has been abducted by the Rigellian Slime Beasts, their deadliest foe, and turned into the most hideous thing imaginable: a human being! Traverse the Rygellian Time-Void, reach the Slime King's lair and dismantle their deathly machine with your Cosmic Tool Kit.

    Why similar: Shoot 'Em Up 38.4%, Arcade 11.5%, Retro 10.4%, Action 8.8%, Shooter 8.7%

  24. #24 ZURD HUNT
    83% matchNo user reviews2025
    Dev: DVPub: David Vecchione
    Windows

    In the year 2,000,000,009, a team of bounty hunters infiltrates a massive facility swarming with hostile AI. Can they find Zurd?

    Why similar: Shoot 'Em Up 33.9%, Side Scroller 13.5%, Action 12.3%, Arcade 11.6%, Retro 9.5%

  25. #25 StanÇact -Sexy Tenacious Girls-
    79% match5 user reviews40% of 5 reviews2023
    Dev: marumellon
    Windows

    『StanÇact』is a cute and sexy girl-on-girl SHOOT'EM UP. Mai, a military officer, is on her way to quell a riot, but the rioters and the military have teamed up and are on the rampage and the head of the military was the ringleader.Witness one woman's struggle to complete her mission amidst the chaos!

    Why similar: Shoot 'Em Up 29.3%, Side Scroller 13.1%, Arcade 8.3%, 1990's 7.6%, Pixel Graphics 7.6%

  26. #26 Super Arcade Boy in Defender of Planet Earth
    80% match3 user reviews100% of 3 reviews2017
    Dev: LoadUpGames.com
    Windows · Mac · Linux

    A retro-style classic side-scrolling shoot ’em up. Fly Super Arcade Boy through 8 levels, blast enemy waves, grab power-ups, and take down bosses.

    Why similar: Shoot 'Em Up 29.1%, Side Scroller 12.1%, Arcade 9.9%, Retro 9.1%, 1990's 8.2%

  27. #27 Feeble Light
    78% matchPositive80% of 10 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 39.1%, Arcade 11.7%, Action 8.9%, Shooter 8.9%, Pixel Graphics 6.8%

  28. #28 Stellar Raid
    79% match8 user reviews78% of 9 reviews2021
    Dev: Berry Patch Games
    Windows

    Stellar Raid is a side-scrolling run and gun game inspired by the greatest classic games of the genre! With a variety of weapon upgrades at your disposal (including a support drone) you’ll charge through hordes of enemy mercenaries to take down one of the Universe’s most notorious space terrorists!

    Why similar: Shoot 'Em Up 35.9%, Side Scroller 20.6%, Arcade 13.1%, Retro 8.8%, 1990's 6.2%

  29. #29 BIO-SUBMARINER DX
    81% matchNo user reviews2026
    Dev: Leech Games
    Windows

    BIO-SUBMARINER DX is a horizontally-scrolling Shoot 'Em Up, Chomp 'Em Up developed for Game Boy Color! Set sail, devour your enemies from surface to sea floor and destroy the enemy CORE! Get into the BIO-SUB, Captain.

    Why similar: Shoot 'Em Up 38.3%, Arcade 12.3%, Shooter 9.3%, Action 8.4%, Aliens 7.1%

  30. #30 Zero Wing
    77% matchVery Positive88% of 86 reviews2023
    Dev: Bitwave GamesPub: Clear River Games
    Windows · Mac · Linux

    Defend the galaxy from vicious space pirates! Seize your foes and fire them back at their allies for devastating destruction in Toaplan's legendary horizontal arcade shooter, now on PC with all-new features and quality-of-life bonuses!

    Why similar: Shoot 'Em Up 29.7%, Side Scroller 14.7%, Arcade 11.4%, Pixel Graphics 7.3%, 1990's 7.3%

  31. #31 Suicide Runners
    76% match1 user reviews0% of 1 reviews2024
    Dev: JTW
    Windows

    Classic 2D shoot em up with updated graphics. Dodge a storm of bullets as you blast through space shooting hordes of enemies. Collect powerups to survive against fearsome bosses. Pilot a suicide runner as you fight to unravel the mystery of what is destroying the universe.

    Why similar: Shoot 'Em Up 33.8%, Arcade 12.4%, Action 12.1%, Side Scroller 10%, Retro 8.9%

  32. #32 Tecroroid Assault
    77% match4 user reviews75% of 4 reviews2019
    Dev: WizByte Games
    Windows

    A synthetic race has come to your planet to steal your technology, And you have to fight them off. Fight off the Tecroroid invasion as they sent wave after wave of enemies to the planet.

    Why similar: Shoot 'Em Up 44.7%, Arcade 16.9%, Retro 11.3%, Action 11.2%, 2D 5.1%

  33. #33 VERZEUS
    75% match9 user reviews89% of 9 reviews2024
    Dev: RETSUZANPub: Henteko Doujin
    Windows

    Blast and weave your way through enemy fire while managing a wide variety of ship power-ups in this retro style horizontal shoot-'em-up!

    Why similar: Shoot 'Em Up 28%, Side Scroller 14.3%, Arcade 9.7%, Retro 8.3%, Aliens 7.7%

  34. #34 Fixeight
    74% matchPositive95% of 20 reviews2024
    Dev: Bitwave GamesPub: Clear River Games
    Windows · Mac · Linux

    Introducing FixEight, Toaplan's thrilling vertical run-and-gun game featuring eight peerless warriors with cutting-edge weapons. Embark on an exhilarating cosmic escapade with up to three players at once. Now on PC with modern extras!

    Why similar: Shoot 'Em Up 40.1%, Arcade 15.3%, Action 8.3%, Old School 7.2%, 1990's 7.1%

  35. #35 Dual Gunstrike
    78% matchNo user reviews
    Dev: Lost Machine Games
    Windows

    WARNING! Dual Gunstrike is a 100-Mega Shock!/32-bit inspired horizontal shmup. Choose between 4 heroes and blast into space to stop a mysterious multi-dimensional creature from destroying humanity!

    Why similar: Shoot 'Em Up 26.9%, Cats 21.6%, Arcade 9.6%, 1990's 9.1%, Pixel Graphics 7%

  36. #36 Crazy Invader ShootEm Down
    74% 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 36.6%, Arcade 16.2%, Retro 11.9%, Action 8.1%, Aliens 7.4%

  37. #37 Cosmic Cruiser
    73% 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: Shoot 'Em Up 24.1%, Arcade 12.2%, Shooter 11.2%, Pixel Graphics 10.7%, Retro 10.1%

  38. #38 Rescue Guardian Blaster
    76% matchNo user reviews
    Dev: fvs games
    Windows · Linux

    Rescue Guardian Blaster is a fast-paced, score-focused shoot 'em up! Destroy enemy ships by matching your ship's gun color to the enemy's to earn more points, all while tracking your score against the best players or your friends.

    Why similar: Shoot 'Em Up 32.5%, Arcade 14.8%, Action 14.1%, Aliens 10.4%, Shooter 9.7%

  39. #39 Pewt 'em Up!
    71% matchVery Positive96% of 171 reviews2022
    Dev: team tsoto
    Windows · Linux

    Pewt 'em Up! is a retro inspired arcade space shoot 'em up with lots of upgrades, achievements, extras and more.

    Why similar: Shoot 'Em Up 30.6%, Arcade 12.8%, Aliens 11.1%, Action 8.9%, Shooter 8.8%

  40. #40 Invaders from the Lost Sectors
    72% match4 user reviews100% of 4 reviews2024
    Dev: The Lost Sectors
    Windows

    Invaders from the Lost Sectors is classic arcade action. Aliens descend with increasing speed towards your base. Shoot them all before they land. Player controlled settings like guided missiles, rate of fire, enemy speed and more help you customize exactly the game experience that you want.

    Why similar: Shoot 'Em Up 36.1%, Arcade 13.3%, Shooter 9.6%, Action 7.8%, Pixel Graphics 7.8%

  41. #41 Slayer Cat
    73% match3 user reviews67% of 3 reviews2022
    Dev: Ducktail Games
    Windows

    Slayer Cat is a classic action shooter game that combines hand-drawn drawings with classic gameplay. Inspired by games like Contra, Doom, and Cuphead. Play as The Slayer Cat as you traverse strange places on an enemy planet, and discover and discover the mysteries of this place!

    Why similar: Shoot 'Em Up 27%, Cats 21.2%, Side Scroller 12.7%, Arcade 12.6%, Shooter 8.4%

  42. #42 Tiger Heli
    72% matchMixed65% of 23 reviews2024
    Dev: Bitwave GamesPub: Clear River Games
    Windows · Mac · Linux

    Take off on a classic arcade journey with Tiger-Heli, Toaplan's pioneering vertical shooter that set the stage for an entire genre. Now available on PC with a host of modern upgrades!

    Why similar: Shoot 'Em Up 44.3%, Arcade 16.6%, Action 8.8%, Old School 7.3%, Pixel Graphics 7.1%

  43. #43 ASTROXION
    75% matchNo user reviews
    Dev: Branec Games
    Windows

    Pilot a powerful starfighter through an endless alien invasion. Rescue the Cubes, survive relentless alien waves, and chase the ultimate high score in this fast-paced arcade space shooter.

    Why similar: Shoot 'Em Up 34.9%, Side Scroller 16.1%, Arcade 15.6%, Action 7.6%, Old School 6.9%

  44. #44 Guardian: Planet Defense
    71% match1 user reviews100% of 1 reviews2023
    Dev: Eager Lemur
    Windows

    Take command of an orbiting defense satellite in this action-packed planetary defense shooter. Blast away at waves of incoming asteroids and crafty aliens before they destroy your planet. Scavenge powerful weapons from vanquished alien ships and turn them against your foes. How long can you survive?

    Why similar: Shoot 'Em Up 46.2%, Arcade 14.5%, Action 11.9%, Shooter 11.1%, Old School 8%

  45. #45 Battle for Asciion
    69% matchPositive88% of 17 reviews2026
    Dev: Relevo
    Windows

    Battle for Asciion is a classic horizontal shoot ’em up built entirely from real text characters. No sprites. No pixels. No images. Just pure ASCII action, massive bosses, weapon upgrades and retro arcade challenge.

    Why similar: Shoot 'Em Up 21.9%, Side Scroller 13.2%, Arcade 11.7%, Action 10.9%, Shooter 7.7%

  46. #46 Lilac 0
    68% matchVery Positive94% of 84 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 35.5%, Arcade 13.3%, Action 8.5%, Pixel Graphics 8.1%, Shooter 7.7%

  47. #47 Ernesto's Asteroid Arcade
    70% matchPositive95% of 19 reviews2023
    Dev: xen-42
    Windows · Linux

    Shoot lasers in space because a fish told you to. Ernesto's Asteroid Arcade is a twin-stick side-scrolling space shoot-em-up which tells the story of a man side-scrolling in space and shooting-em-up with twin-sticks. This game has at least 2 characters in it.

    Why similar: Shoot 'Em Up 31.1%, Action 14.7%, Arcade 14.4%, Side Scroller 12.7%, Shooter 9.4%

  48. #48 Squad Killer
    71% match1 user reviews100% of 1 reviews2021
    Dev: WANZUNGDEV
    Windows

    You are the Squad Killer! Blast through this retro arcade experience guns blazing! Hope you brought your reflexes because this pixel art massacre offers some good old hard core button mashing fun!

    Why similar: Shoot 'Em Up 23%, Action 13.9%, Arcade 13.7%, Side Scroller 11%, Shooter 8.3%

  49. #49 Future Knight
    65% matchVery Positive99% of 166 reviews2026
    Dev: Studio KobaPub: Aeternum Game Studios
    Windows

    Frenetic action and LCD aesthetic! In this 2D Shoot 'Em Up, switch between a robot hero and his benign tumor to stop a bizarre cult. You have 8 hours to save humanity's memory: defeat grotesque bosses, ride the skies on your Future Board, and master the chaos in a retro-futuristic Tokyo.

    Why similar: Shoot 'Em Up 32.2%, Arcade 14.3%, Action 12.6%, Side Scroller 11.3%, Pixel Graphics 9.6%

  50. #50 Xenmega
    73% matchNo user reviews2026
    Dev: iMWCode Gaming
    Windows

    A retro arcade space shooter where you blast alien fleets, dodge bomb swarms, collect power-ups, and fight solo or in local co-op to liberate occupied planets from the mind-controlling energy force code-named Xenmega.

    Why similar: Shoot 'Em Up 35.1%, Side Scroller 19.6%, Arcade 12%, Shooter 9.1%, Action 8%

  51. #51 Invasion From Space
    68% matchPositive100% of 27 reviews2022
    Dev: Jean Tampon
    Windows

    Simple remake of Space Invaders adding destructions and physics

    Why similar: Shoot 'Em Up 36.5%, Arcade 15.3%, Action 14%, Aliens 10.5%, Pixel Graphics 7.6%

  52. #52 Flying Shark
    66% matchPositive89% of 47 reviews2023
    Dev: Bitwave GamesPub: Clear River Games
    Windows · Mac · Linux

    Experience Toaplan's arcade shooter Flying Shark (AKA Sky Shark) on PC with the latest quality-of-life features. Ride through the skies as they burn in a rain of armor-piercing bullets! You have been chosen for the mission. Because you are the best pilot there is!

    Why similar: Shoot 'Em Up 43.5%, Arcade 18.8%, Action 17%, Retro 10.5%, Score Attack 5.4%

  53. #53 Astral Bounty
    70% matchNo user reviews2027
    Dev: Weepel Games
    Windows

    Astral Bounty is a demanding 2D arcade side-scroller straight out of the ’90s. Blast through hand-built enemy waves, hunt four bounties, earn credits and blow them on beefy upgrades in the shop. You’re going to need them. 3 difficulty levels, 4 ships, mercy optional.

    Why similar: Shoot 'Em Up 29.2%, Side Scroller 12.3%, Arcade 11%, 1990's 8.8%, Pixel Graphics 7.8%

  54. #54 WOLFLAME
    67% matchVery Positive86% of 123 reviews2016
    Dev: ASTRO PORTPub: Henteko Doujin
    Windows · Linux
    Median: 3.1 hrsMean: 3.7 hrs≥1hr: 89%

    Brought to you by the makers of GIGANTIC ARMY, Supercharged Robot VULKAISER, and SATAZIUS, WOLFLAME is a return to the form of glorious 2D vertical vertical shooters like Raiden, Raptor, and Twin Cobra.

    Why similar: Shoot 'Em Up 42.4%, Arcade 13.6%, Shooter 8.9%, Action 8.7%, Pixel Graphics 7.5%

  55. #55 ImageStriker
    66% matchVery Positive93% of 95 reviews2019
    Dev: TERARIN GAMES
    Windows

    Image Striker is a 2D vertical scroll shooting game.

    Why similar: Shoot 'Em Up 38.1%, Pixel Graphics 10%, Shooter 9.8%, Retro 8.4%, Arcade 7.1%

  56. #56 Crystal Drive Z
    70% matchNo user reviews2026
    Dev: Northline Works
    Windows · Linux

    An arcade shoot 'em up where you brave a hostile asteroid field as one of five ace pilots, battling space pirates and aliens for the energy-rich crystals that keep your stranded world-ship alive. Push your luck to the edge and upgrade your ship between runs if you make it home.

    Why similar: Shoot 'Em Up 46%, Arcade 15.5%, Action 11.9%, Pixel Graphics 10.9%, Score Attack 7.5%

  57. #57 Vektor Z
    67% 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 32.6%, Arcade 15.2%, Action 14.1%, 1990's 9.3%, Old School 7.5%

  58. #58 Jezebel: Givin' Love a Shot
    69% matchNo user reviews
    Dev: Voodoo Games
    Windows

    An old-school horizontal shoot 'em up, heavily inspired by the arcade classics of the 90's!

    Why similar: Shoot 'Em Up 30.4%, Side Scroller 15.4%, Cats 13.6%, Arcade 11.5%, Shooter 8.2%

  59. #59 Groundskeeper 2
    65% match2 user reviews100% of 2 reviews2025
    Dev: Orangepixel
    Windows · Mac · Linux

    Try to survive waves of robotic space aliens, and be a true hero to the resistance. Unlock new weapons to help you further in your quest to protect the world from the alien invasion in this classic Arcade style Retro game

    Why similar: Shoot 'Em Up 33.8%, Action 13%, Shooter 10.2%, Aliens 8.4%, Pixel Graphics 7.3%

  60. #60 Kanamono
    66% match6 user reviews83% of 6 reviews2021
    Dev: Karai
    Windows

    Destroy your enemies and use the scraps that come out to destroy them even more! Side-scrolling space fantasy shooting game, that is "Kanamono".

    Why similar: Shoot 'Em Up 41.8%, Side Scroller 23%, Action 11.5%, Shooter 9.7%, Pixel Graphics 7.7%

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Project NEUNLEBEN Alpha Defence Force cover art

Games Like Project NEUNLEBEN Alpha Defence Force

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