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Games Like Planetary Defense: An Orbital Turret Defense System

60+ similar titles based on shared tags and player behavior. Themes include Top-Down Shooter, Top-Down, Singleplayer, Action.

Planetary Defense: An Orbital Turret Defense System header art

2D space shooter and turret defense come together to create the Planetary Defense System this world needs! Shoot down asteroids and aliens and survive the bosses in this arcade like game featuring customizable satellites, projectiles, and upgradable Cannon and Planet Shield systems.

Reviews: 3 user reviews — 100% — of 3 reviews
Released: 2022-08-11
Developer: SODEC Games
Genres: Action, Indie, Strategy
Platforms: Windows

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    97% match2 user reviews100% of 2 reviews2025
    Dev: João Capobianco
    Windows

    WarShape is a "Top Down Shooter" where you face growing hordes of enemies. As you progress, the weapons and defenses of everyone in the arena evolve, starting from primitive equipment to technological weapons. Build, find weapons, recruit allies and buy upgrades to survive the attacks.

    Why similar: Tower Defense 23%, Top-Down Shooter 21.5%, Bullet Hell 13.7%, Shooter 6%, Pixel Graphics 5.9%

  2. #2 Rombykon
    96% matchNo user reviews2026
    Dev: Guiliam Games
    Windows · Mac · Linux

    Become Romby, a tiny crystal lost in space! Survive and defend the crystal against dark waves by upgrading crazy weapons, planting strange flowers, and using tarot cards. Explore constellations, defeat bosses, and unlock over 100 unique skills.

    Why similar: Tower Defense 24.8%, Top-Down Shooter 19.5%, Bullet Hell 12.9%, Space 12.5%, Strategy 7.3%

  3. #3 AstroWars
    96% matchNo user reviews2026
    Dev: Jonathan Silverman
    Windows

    AstroWars is a top down 2d shooter with monsters and a blue gun. Earn score by killing monsters and try to beat your top score.

    Why similar: Top-Down Shooter 23.6%, Aliens 13.2%, Shooter 12.4%, Space 9.6%, Action 7.4%

  4. #4 Celestial Wardens
    95% matchNo user reviews2025
    Dev: Crimson Mantis Interactive
    Windows

    Celestial Wardens is a sci-fi tower defense game where you command a lone spaceship to defend a planet under siege. Survive waves of enemies, build turrets, upgrade your ship, and manage your planet to prevent total annihilation.

    Why similar: Tower Defense 28.1%, Top-Down Shooter 21.7%, Space 14.5%, Shooter 8.5%, Aliens 8.5%

  5. #5 Blasteroids
    94% match3 user reviews100% of 3 reviews2024
    Dev: Crossy
    Windows

    Blast your way through waves of space debris in order to reach what is waiting for you on the other side. Find your fighting style with multiple unlockable ships in this fast paced space adventure!

    Why similar: Top-Down Shooter 18.5%, Space 16.1%, Bullet Hell 10.2%, Hand-drawn 10.1%, Sci-fi 8.1%

  6. #6 Neonis
    94% match7 user reviews86% of 7 reviews2019
    Dev: GoldenEvolution
    Windows

    Neonis is a highly action packed top-down shooter in which you try to survive as long as possible. The game has a couple different gamemodes, such as: Classic, Chaos, Dodge and Flood. Pick up the buffs to have a higher chance of surviving for a longer period of time.

    Why similar: Tower Defense 26.2%, Top-Down Shooter 24.8%, Space 15.4%, Shooter 6.9%, Top-Down 6.6%

  7. #7 Unearthing Invasions
    93% match5 user reviews100% of 5 reviews2024
    Dev: Aquarius Max
    Windows · Mac · Linux

    A 3d tower defense game set in space. Protect the last resource outposts from the ongoing Alien attacks! Can you hold out in these ever increasing difficult waves of enemies and protect the last of your resources and Energy?

    Why similar: Tower Defense 26.8%, Top-Down Shooter 17%, Aliens 13.4%, Space 12.7%, Top-Down 9.1%

  8. #8 Solar Defense
    92% matchNo user reviews100% of 1 reviews2026
    Dev: Ballant Studios
    Windows

    Solar Defense is a Military Sci-Fi inspired Tower Defense game focused heavily on strategy and decision making. Defend key locations and repel the Pilakarr forces back to their home world to end their attack and bring an end to this war.

    Why similar: Tower Defense 24.8%, Top-Down Shooter 19.7%, Aliens 12.7%, Strategy 9.9%, Action 6.9%

  9. #9 Uprising on Altyyr 5
    91% matchNo user reviews
    Dev: Funky Monkey Games
    Windows

    Join Captain Rijk as he attempts to escape from the clutches of one of the most villainous species in the galaxy. Help to uncover the horrors that are being carried out on the fringes of the civilised galaxy and become the divine being prophesised to inspire an uprising and destroy The Domain.

    Why similar: Top-Down Shooter 24.4%, Aliens 17.3%, Space 17.2%, Shooter 11.6%, Sci-fi 9.3%

  10. #10 Crossroads of life
    91% matchMixed57% of 14 reviews2022
    Dev: RenPixelPub: My Way Games
    Windows

    Crossroads of life - a game in which you have to fight off waves of enemies while protecting your life.

    Why similar: Tower Defense 31.4%, Top-Down Shooter 24.1%, Aliens 14.8%, Top-Down 9.9%, Action 8.6%

  11. #11 AREA WARS™
    90% match1 user reviews100% of 1 reviews2026
    Dev: RexoPub: STUDIO.D0DO
    Windows

    AREA WARS™ is a fast-paced 2D omnidirectional shooter where you battle enemies from every direction in a constantly changing enclosed area. Defeated enemies trigger chain explosions that engulf nearby foes and boost your score multiplier. Built for short, repeatable runs with score-focused gameplay.

    Why similar: Top-Down Shooter 25.2%, Bullet Hell 19.9%, Shooter 11.6%, Space 8.5%, Top-Down 7.8%

  12. #12 Intergalactic Battle Roosters
    89% matchNo user reviews
    Dev: Dead Rock Games
    Windows

    It’s time to cluck around and find out. Gear up and pull on the helmets of the Battle Roosters, a hotshot space brigade of poultry with panache. In this quirky, roguelike, bullet hell adventure you’ll combine weapons, upgrades and killer strategies to recover space’s best taco ingredients. Bwark!

    Why similar: Top-Down Shooter 15.4%, Aliens 13.5%, Space 11.6%, Bullet Hell 11.4%, Hand-drawn 9.3%

  13. #13 Zombie House Defense
    89% match3 user reviews100% of 3 reviews2024
    Dev: AdamsaucePub: KAM Development
    Windows

    Defend your house from the hoards!

    Why similar: Tower Defense 22.4%, Top-Down Shooter 20.4%, Bullet Hell 14.1%, Shooter 9.5%, Top-Down 7.2%

  14. #14 XenoFeud
    87% match4 user reviews100% of 4 reviews2023
    Dev: Downforce Games
    Windows

    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.

    Why similar: Top-Down Shooter 18.8%, Tower Defense 16.2%, Space 12.4%, Aliens 12%, Shooter 8.6%

  15. #15 Arcadia
    86% match3 user reviews100% of 3 reviews2022
    Dev: ImaginePub: Pixel Games UK
    Windows

    In this highly addictive top-down arcade shoot-em-up from 1982, originally for the ZX Spectrum, defend yourself from wave upon wave of deadly alien combatants using your Ion Thrust Drive and dual Plasma Disruptors.

    Why similar: Top-Down Shooter 36.3%, Space 9.6%, Aliens 9.5%, Shooter 8.1%, Pixel Graphics 7%

  16. #16 Dreadnought
    86% matchNo user reviews
    Dev: B.V.SPub: Retro Box Game Studio
    Windows

    Mow down the alien hordes, scout for resources and survive. Dreadnought is a mix of Action Tower Defense Survival and Shoot 'Em Up Bullet Hell where you control the ships turrets & defend against waves of enemies. Choose your weapons, upgrade your ship & brace yourself, the horde is coming.

    Why similar: Top-Down Shooter 19.2%, Bullet Hell 13.9%, Space 8.1%, Survival 8%, Tower Defense 7.4%

  17. #17 NTD: Tower Defense x Arcade
    85% matchNo user reviews
    Dev: Disco69
    Windows

    Be the Gun & the Architect. Arcade-Tower defense hybrid with controller-first design for a snappy tower building and twin-stick shooting. Every kill feeds the machine. Adapt to roguelike chaos with unique items and synergies. Can you build the ultimate defense & survive the Derp?

    Why similar: Tower Defense 27.1%, Top-Down Shooter 22%, Space 13.7%, Top-Down 8.5%, Shooter 8.4%

  18. #18 Red Galaxy
    84% match8 user reviews100% of 8 reviews2021
    Dev: CSZgames
    Windows

    This is a retro space shooting game, where you only fight against the strongest enemy. There are 15 unique bosses in the game, and players need to use different weapons and strategies to defeat them. Dedicated to you who are both challengers and retro game lovers.

    Why similar: Top-Down Shooter 23.8%, Bullet Hell 17.1%, Aliens 15.1%, Shooter 12.5%, Top-Down 8.4%

  19. #19 Dwarf Star
    84% match1 user reviews100% of 1 reviews2022
    Dev: Calvin WilliamsPub: Robert Williams
    Windows

    Dwarf Star: 16 bit inspired game where mercenary go shoot shoot on evil alien guys who were accidentally fabricated by the government. Top down space shooter with a mission based structure. However, you can do these missions in plenty of different orders with different amounts of upgrades.

    Why similar: Top-Down Shooter 20%, Aliens 14.9%, Bullet Hell 14.5%, Shooter 10.4%, Space 8.9%

  20. #20 Shatterswarm
    82% matchNo user reviews2027
    Dev: Iron Fin Games
    Windows · Mac · Linux

    Command Captain Hope's ship in this strategic 2D space game. Build structures, deploy fleets, and manage resources to defend the Citadel against waves of enemies. Combine direct ship combat, tower defense, and base building as you face epic boss battles.

    Why similar: Tower Defense 21.8%, Top-Down Shooter 14.8%, Bullet Hell 10.9%, Aliens 10.5%, Strategy 8.7%

  21. #21 HyperFeat
    83% match2 user reviews50% of 2 reviews2021
    Dev: LobianGames
    Windows

    A top down 2D space shooter bullethell with roguelike elements awaits you. Dodge, weave and shoot your way through waves of enemies while gaining upgrades trying to survive as long as possible.

    Why similar: Top-Down Shooter 22.6%, Bullet Hell 18.7%, Space 16.3%, Aliens 10.7%, Shooter 7.3%

  22. #22 Omnicore: Freiza's Retribution
    82% matchNo user reviews
    Dev: FreizaPub: Omnicore
    Windows · Linux

    A hardcore sci-fi survival game spanning 400+ procedurally generated star systems. Defend, mine, trade, fight, and command your way through a galaxy where five factions never stop expanding and every resource fuels your next desperate move.

    Why similar: Tower Defense 20.1%, Space 17.9%, Top-Down Shooter 15%, Strategy 12.6%, Shooter 12.4%

  23. #23 Project AionIX
    81% matchNo user reviews
    Dev: AionBlaze Studio
    Windows

    Blast through waves of alien enemies in Project AionIX! Master your piloting skills, dodge, and survive in this fast-paced space shooter!

    Why similar: Top-Down Shooter 25%, Bullet Hell 15.9%, Shooter 11.9%, Aliens 11.3%, Sci-fi 8.4%

  24. #24 Aliens falling from the Sky?
    81% matchNo user reviews
    Dev: Starcradle Studio
    Windows · Mac · Linux

    Aliens Falling from the Sky? reimagines tower defense with intense action and tactical depth. Build, upgrade, and combine powerful towers to stop relentless alien waves — because somehow, saving the world is your problem now.

    Why similar: Tower Defense 35.1%, Aliens 18.9%, Space 18.8%, Top-Down 12.2%, Strategy 8.3%

  25. #25 Hive Jump 2: Survivors
    78% matchVery Positive84% of 110 reviews2024
    Dev: Graphite LabPub: Midwest Games
    Windows · Linux

    Become an agent of vengeance in this bullet-heaven action roguelite! You are the lone survivor of your squad, on an alien planet with just your weapon, a jetpack, and the courage to keep fighting. Kill off alien swarms and transform their valuable guts into explosive upgrades and vital utilities.

    Why similar: Top-Down Shooter 16.3%, Aliens 14.9%, Bullet Hell 12%, Space 11.9%, Survival 8%

  26. #26 Scrap Bastion
    80% match1 user reviews0% of 1 reviews2023
    Dev: Tadpole Games
    Windows

    Scrap Bastion is a strategy tower defense game where you manage your city, equipping it to survive the waves of mutant creatures, testing your planning and decision making capacities at every turn. Watch out, as time is crucial to win!

    Why similar: Tower Defense 31.8%, Aliens 11.2%, Survival 9.6%, Bullet Hell 9.2%, Strategy 8.9%

  27. #27 Defend the Fort
    79% match7 user reviews71% of 7 reviews2021
    Dev: Yunus KocamisPub: Yuko Software
    Windows · Linux

    2D topdown zombie survival shooter, build defences, survive the waves of zombies

    Why similar: Tower Defense 23.8%, Top-Down Shooter 20.6%, Bullet Hell 14%, Shooter 10.5%, Top-Down 8.6%

  28. #28 Karakia Shooter
    79% match1 user reviews100% of 1 reviews2020
    Dev: John Caruso
    Windows

    Fast Paced, Bullet Hell Retro Shooter! Shoot down enemies and dodge everything. Fight through 17 intense levels with 6 insane boss fights. Do you have what it takes to beat the game?

    Why similar: Top-Down Shooter 22.2%, Bullet Hell 18.7%, Space 14.2%, Shooter 12.3%, Pixel Graphics 7.1%

  29. #29 Bumper Blitz TD
    78% matchNo user reviews
    Dev: Ragnarok StudiosPub: Mad Data Games
    Windows · Mac · Linux

    Bumper Blitz TD redefines tower defense with gravity-powered physics and dynamic gameplay. Build, upgrade, and bounce enemies away in this thrilling fusion of strategy and action!

    Why similar: Tower Defense 38.6%, Aliens 16.5%, Space 12.6%, Top-Down 8.7%, Strategy 8.3%

  30. #30 Alpha Force Zero
    77% matchNo user reviews
    Dev: osm games
    Windows

    Alpha Force Zero is an intense top-down bullet-hell adventure that requires skill and planning. Utilize multiple weapon systems including an Auto-Turret with adjustable firing modes and unlock upgrades that you can equip in your ship to give you the upper hand. Dodge, fight, survive!

    Why similar: Top-Down Shooter 22%, Bullet Hell 16.1%, Space 11%, Shooter 10.4%, Aliens 10.4%

  31. #31 Spaceships and Cellular Automata
    76% matchNo user reviews2026
    Dev: Kcorbco
    Windows

    Spaceships and Cellular Automata is a tower defense game set in space! Place different towers to defend your ship against the waves of aliens. The enemies are simulated based on Conway's Game of Life. Even just one of your bullets is enough to cause a destabilizing chain reaction to destroy them!

    Why similar: Tower Defense 36.2%, Space 21.4%, Aliens 13.2%, Strategy 10.9%, Pixel Graphics 8.6%

  32. #32 Autothysis
    76% matchNo user reviews
    Dev: Somniare Studios
    Windows · Mac

    Autothysis is a first-person tower defense game where strategy meets precision. Deploy turrets, manage resources, and fight swarms of insectoid enemies. Target weak points to shatter foes while upgrading defenses to survive escalating waves. Can you withstand the oncoming horde?

    Why similar: Tower Defense 27.7%, Aliens 14.4%, Space 13%, Survival 10.1%, Sci-fi 8.6%

  33. #33 Spaced Liberation
    77% matchNo user reviews2024
    Dev: hoiJesse
    Windows

    Spaced Liberation is a very small indie game about the liberation of a planet.

    Why similar: Top-Down Shooter 18.2%, Aliens 14.3%, Bullet Hell 14.2%, Space 11.4%, Shooter 9.2%

  34. #34 Space Bross
    74% matchPositive88% of 32 reviews2025
    Dev: Lavega Games
    Windows · Mac · Linux

    Your chicken has been kidnapped, and that’s all it takes to send a retired astronaut into full galactic mayhem. Space Bross is a hand-drawn 2.5D tower defense & action roguelite where you’ll build bases, fend off alien hordes, and blast your way across planets to bring your feathery friend back.

    Why similar: Tower Defense 18.4%, Top-Down Shooter 15.5%, Aliens 13%, Space 12.4%, Bullet Hell 11.2%

  35. #35 Defend the ship, bot !
    74% match1 user reviews100% of 1 reviews2026
    Dev: Cheasy Easy
    Windows

    4 turrets, a ship in peril, and waves of enemies. Hold the line and defend the ship, robot.

    Why similar: Top-Down Shooter 23.1%, Tower Defense 17.8%, Space 14%, Strategy 13.2%, Shooter 12.3%

  36. #36 Super Meteor
    75% matchNo user reviews
    Dev: HZ3 Software
    Windows

    Can "Super Meteor" save the universe from the space debris created by the development of space by the people of Earth?

    Why similar: Space 22.8%, Pixel Graphics 12.8%, Aliens 11.3%, Sci-fi 11%, Bullet Hell 10.8%

  37. #37 Let Them Come
    75% matchVery Positive84% of 1,353 reviews2017
    Dev: Tuatara GamesPub: Versus Evil
    Windows · Mac
    Median: 2.8 hrsMean: 3.7 hrs≥1hr: 83%

    Let Them Come is a fast paced pixel art shoot ‘em up. Twitchy trigger fingers and focused battle tactics are the order of the day as wave after wave of alien-like creatures try to take you down.

    Why similar: Tower Defense 27.7%, Aliens 18.1%, Shooter 10.4%, Survival 8.3%, Pixel Graphics 8.1%

  38. #38 Tower Tactics Arena
    73% matchMostly Positive80% of 30 reviews2025
    Dev: asraworks
    Windows

    Tower Tactics Arena is a fast-paced action roguelite set in the Tower Tactics: Liberation universe. Battle relentless enemy waves in a closed combat arena, level up your towers strategically, and gather powerful trinkets and potions! Will you claim victory in the arena?

    Why similar: Tower Defense 24.9%, Space 11.9%, Survival 9.9%, Bullet Hell 9.8%, Sci-fi 9.4%

  39. #39 Sophstar
    72% matchVery Positive100% of 102 reviews2022
    Dev: Banana Bytes
    Windows

    A vertical arcade shoot'em up with an inventive teleport system, lots of fast-blazing action and explosions, tons of boss fights, a risk/reward based score system and a proper challenge for both veteran and new players of the genre.

    Why similar: Top-Down Shooter 20.5%, Bullet Hell 15.4%, Aliens 11.8%, Space 11.4%, Shooter 8.1%

  40. #40 TD Tower Defense
    73% match2 user reviews50% of 2 reviews2023
    Dev: Imprint Gaming
    Windows

    Build your towers according to the enmey you are facing in the wave. Upgrade your turrets to increase range, damage or rewards. Each enemy wave will be random and increases in speed and damage resistance. How far can you go!

    Why similar: Tower Defense 34.5%, Top-Down Shooter 16.9%, Sci-fi 10.9%, Strategy 7.3%, Combat 7.3%

  41. #41 Defender's Squad: The Last Ride
    71% 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: Space 16.7%, Shooter 12.8%, Top-Down 11%, Top-Down Shooter 10.9%, Bullet Hell 9.8%

  42. #42 Space Survival
    73% matchMixed50% of 150 reviews2016
    Dev: UltraShock Gaming LLCPub: Conglomerate 5
    Windows
    Median: 3.2 hrsMean: 4.0 hrs≥1hr: 79%

    Space Survival is the next great SIMPLE 2D casual space action shooter where you have to defend against wave of enemies, have fast reflexes and strong will to win. It is great way to relax, but also a great challenge. How long can you stay focused?

    Why similar: Space 18.3%, Top-Down Shooter 15.7%, Aliens 12.7%, Bullet Hell 11.6%, Survival 10.3%

  43. #43 lone.AI
    71% match1 user reviews100% of 1 reviews2025
    Dev: Digital Drank
    Windows

    lone.AI is a space RPG roguelite. With challenging, relentless gameplay, each run has the potential to boost your ship's power, speed, and more. As a lone AI, fight your way through the solar system and uncover the secret behind the ZOSMA, an alien race that holds power over the system.

    Why similar: Top-Down Shooter 17.8%, Space 15.9%, Aliens 14.3%, Bullet Hell 12.1%, Shooter 9.8%

  44. #44 Nuts Space Shooter
    72% match2 user reviews50% of 2 reviews2022
    Dev: IT's Nuts
    Windows · Linux

    Repel extraterrestrial entities!

    Why similar: Top-Down Shooter 21.4%, Space 19%, Bullet Hell 12.6%, Shooter 11.5%, Top-Down 8.7%

  45. #45 Gamma Zero
    69% matchPositive90% of 21 reviews2025
    Dev: Sinclair Gurny
    Windows · Mac · Linux

    The earth is being attacked by creatures from deep space! Time to bring the fight back to them! Battle through multiple stages of heart pounding bullet hell action. Evade the onslaught of bullets, rack up massive multipliers, and get revenge for your planet!

    Why similar: Top-Down Shooter 23.1%, Bullet Hell 17.6%, Aliens 17.1%, Top-Down 8.8%, Space 8.1%

  46. #46 SENTRY
    68% matchVery Positive83% of 853 reviews2024
    Dev: Fireblade Software
    Windows
    Median: 2.7 hrsMean: 5.2 hrs≥1hr: 70%

    SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.

    Why similar: Tower Defense 28.3%, Aliens 13.8%, Space 12.9%, Survival 9.9%, Sci-fi 8.9%

  47. #47 Clive vs Hives 2
    71% match3 user reviews100% of 3 reviews2022
    Dev: Ugly Duckling Games
    Windows

    Blast aliens to pieces and start a rebellion in this fast paced pixel art top down shooter where sprinting kills.

    Why similar: Top-Down Shooter 23.8%, Aliens 18.3%, Space 11.1%, Shooter 10.7%, Top-Down 9.4%

  48. #48 Space Station Defender
    70% matchNo user reviews
    Dev: MATTGRV
    Windows

    Defeat enemies and get parts! Build your own spaceship!

    Why similar: Tower Defense 15.6%, Top-Down Shooter 15%, Bullet Hell 12.7%, Space 11.9%, Aliens 10.5%

  49. #49 Blue Jay Joyride
    70% match3 user reviews100% of 3 reviews2022
    Dev: Simmuk
    Windows

    Blue Jay Joyride is a fast-paced 2D space shooter. Go through waves of enemies and fight progressively harder bosses. Collect one of the many unique powerups to give your ship a fighting chance in this intense game.

    Why similar: Top-Down Shooter 29%, Aliens 17.5%, Space 10.7%, Top-Down 9.3%, Action 9%

  50. #50 Shroom & Doom
    68% matchMixed60% of 20 reviews2023
    Dev: Whole Hearted GamesPub: DigiPen Institute of Technology
    Windows

    A top-down tower-defense game where you play as a little robot that has crash landed on an alien planet. Defend yourself against waves of bug-like enemies using towers made from the local mushrooms. Find a way to repair your ship and escape the planet!

    Why similar: Top-Down Shooter 33%, Tower Defense 31.9%, Shooter 13.5%, Top-Down 10.4%, Action 6.1%

  51. #51 Mars Survivor
    67% matchMostly Positive74% of 31 reviews2025
    Dev: EstotyPub: QubicGames
    Windows

    After an asteroid catastrophe, your rocket ship crash-lands in the wilderness of Mars. Explore the planet's mysteries, strategize your escape, and build a shelter to protect yourself!

    Why similar: Space 20.9%, Top-Down Shooter 20.9%, Top-Down 12.6%, Sci-fi 12.4%, Crafting 11%

  52. #52 Gore Storm
    67% matchVery Positive94% of 70 reviews2023
    Dev: Gundorado
    Windows

    Battle massive hordes of alien monsters to secure humanity's presence on planet Gore. Upgrade your base, hire troops, and install turrets to fight back the ever growing waves of aliens.

    Why similar: Top-Down Shooter 21.2%, Tower Defense 20.9%, Shooter 9.4%, Aliens 9.2%, Survival 7.8%

  53. #53 Stop the Saturnians!
    69% match5 user reviews100% of 5 reviews2022
    Dev: Jeff Sinasac
    Windows

    Stop the Saturnians is a shooter inspired by classic arcade games. Dodge enemy fire, destroy procedurally generated alien waves and fight massive bosses. Collect resources in the midst of combat to upgrade your ship or improve Earth's defenses. Protect yourself and the planet both!

    Why similar: Top-Down Shooter 21.1%, Space 17.2%, Aliens 14.9%, Shooter 11.2%, Pixel Graphics 6.5%

  54. #54 Stellar Space
    69% match1 user reviews100% of 1 reviews2022
    Dev: Next Step Studios
    Windows · Mac

    Stellar Space is a new take on a classic arcade game with a modern, rogue-like, form for new players to enjoy!

    Why similar: Top-Down Shooter 19.7%, Aliens 13%, Space 11.5%, Bullet Hell 9.4%, Shooter 9.2%

  55. #55 Gun Up
    67% match1 user reviews100% of 1 reviews2026
    Dev: Horsepower Interactive
    Windows

    Kill the undead, get new weapons, combine weapons, kill even more undead! Over 20 weapons, INFINITE combinations. Featuring different locations to play and survive. How long can you survive?

    Why similar: Top-Down Shooter 31.8%, Bullet Hell 25%, Shooter 13.4%, Top-Down 11.2%, Action 6.6%

  56. #56 Space Base
    66% match3 user reviews100% of 3 reviews2025
    Dev: FishBaitPub: PondDev
    Windows

    Space Base is an action-packed tower defence game, where you aim to protect your planets from the incoming forces of enemy ships and aliens by any means necessary. Build up your defences as stronger and stronger waves of enemies arrive to reach the highest score possible.

    Why similar: Tower Defense 32.6%, Aliens 11%, Top-Down 10.9%, Space 10.8%, PvE 10.5%

  57. #57 Starfighter Neon
    70% match4 user reviews75% of 4 reviews2017
    Dev: MadeOfDinosaurs
    Windows · Mac

    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.

    Why similar: Top-Down Shooter 19.8%, Bullet Hell 15.1%, Aliens 13.2%, Shooter 8.9%, Space 8.4%

  58. #58 SWT: Survivor With Towers
    67% matchNo user reviews2026
    Dev: chosimgames
    Windows

    Fusion of Vampire Survivors Like and Tower Defense! Survive with Towers against waves of enemies. Build towers by day, survive endless enemy waves by night. Expand your territory, gain experience, and grow stronger with each battle. How long can you survive?

    Why similar: Tower Defense 25.1%, Top-Down Shooter 19.4%, Bullet Hell 13%, Shooter 10.3%, Aliens 7.7%

  59. #59 Magnetron Rebellion: Fully Loaded
    68% match1 user reviews100% of 1 reviews2023
    Dev: Sabre Rael
    Windows · Mac · Linux

    You are a single ship outnumbered and outgunned by the enemy fleet. The one advantage you have is a powerful magnet that is capable of capturing the enemy bullets and firing them back at the enemy!

    Why similar: Top-Down Shooter 35.4%, Shooter 15.3%, Space 12.3%, Top-Down 12.1%, Action 6.4%

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Games Like Planetary Defense: An Orbital Turret Defense System

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