Games like Galactic Missile Defense
by Black Sheep Games
Galactic Missile Defense is a shooter and tower defense game, where you must protect Earth from the invading Martians that declared war on our planet just because a space rover accidentally ruined their picnic!
View on Steam · $1.99 →
Ranked by how similar the games actually are, not by sales. Released and Price are remembered for next time.
Closest matches
$9.99Space Dragons
Aug 2 · TEAM Black Hat Robot
Both: Shoot 'Em Up · Arcade · Shooter
Choose your spaceship and defeat the alien threat that comes from the Moon. Blast your way crushing, ripping apart and exploding hostile aliens that are taking control of powerful weapons and military technology from Earth. Find the entity that controls the threat and make it explode into blood.
ActionShoot 'Em UpBullet HellPixel GraphicsArcadeShooterSide ScrollerAliens2DAnime
$1.99Mars 2099
3 days ago · Oldschool Tobias
Both: Arcade · Shoot 'Em Up
Defend humanity's first Mars colony in this fast-paced modern arcade space shooter. Battle asteroid storms, hostile UFOs, complete challenging missions, and master skill-based gameplay inspired by the golden age of arcade classics.
ActionArcadeShoot 'Em UpPixel GraphicsSpaceRetroDifficultControllerSingleplayerMars
$9.99Cluckmech Oasis
May 9 · BlackLight
Both: Tower Defense · Shooter
Cluckmech Oasis, a top-down shooting Roguelike tower defense game. Play as the Warcluck and lead your team of animal heroes in a fight for survival. Collect, build and upgrade defenses, and engage in intense battle against waves of plant enemies.
StrategyRoguelikeTower DefensePixel GraphicsTop-Down ShooterCuteRogueliteBuildingActionShooter👍 3,078
$4.99X Invader
Aug 12 · ALLAF GAMES
Both: Shoot 'Em Up · Shooter
X Invader is an action roguelite where you hack into big corporations' servers. Use add-ons from fellow hackers to defeat monsters. Powerful, cute bosses guard these servers!
Shoot 'Em UpArena ShooterAction RoguelikeBullet HellTwin Stick ShooterTop-Down ShooterRogueliteHack and SlashPvEShooter👍 531
$19.99Alien Hominid Invasion
Nov 1 · The Behemoth
Both: Shoot 'Em Up · Arcade
Old friends and bitter enemies await as you invade Earth alongside a Mothership full of alien friends! Blast, beam, and bite your way through an endless swarm of enemies as you and up to three of your fellow hominids cause mayhem with a huge arsenal of weapons, mutations, and acrobatic maneuvers.
Online Co-OpMultiplayerShoot 'Em UpAction RoguelikeSingleplayerCasualArcadeBeat 'em upRPGAction👍 1,572
$4.99Aim in Space
Jan 22 · Serhii Khramov, Davyd Moskalenko, Maksym Kanshin
Both: Shoot 'Em Up · Shooter · Arcade
Help defend Earth's space base from invading enemy aliens in this incredible game to train reaction and aiming skills. Use your entire arsenal of weapons to destroy enemies of various types. Stand up to protect the planet. Best of luck!
Shoot 'Em UpFlightIncrementalPvEPoint & ClickSpace SimShooterArcadeRoguelike2D
$5.99Frontline Crisis
Aug 14 · BCQT
Both: Tower Defense
Defend humanity's last hope, pilot a powerful mech, in Frontlines Crisis! A battlefield swarming with insects makes strategic and combat decisions crucial. Each decision will determine your fate. Defend humanity's last sanctuary, fight fiercely, and uphold human honor with wits and courage!
Tower DefenseTop-Down ShooterRTSStrategyPixel GraphicsSpaceMechsLocal Co-OpAction RTS1980s👍 348
$9.99Space Defender: Frontier Squadron
May 5 · Petit Vaisseau
Both: Shoot 'Em Up · Arcade
Lead a squadron against the Drone invasion in a top-down space shooter with RPG depth. Take contracts across three galaxies, outfit and upgrade your ship, recruit wingmen, and push the story through to the Nexus.
Early AccessSpaceTwin Stick ShooterShoot 'Em UpTop-Down ShooterRPGSpaceshipsActionArcadeSci-fi
$6.99Insect Swarm
Sep 11 · Parallel Portal
Both: Shooter · Shoot 'Em Up
The insect swarm is a swarm consists of millions of alien insects, and you, as the only survival on this barren planet, will have to fight against them dauntlessly. Good luck!
ShooterTop-DownShoot 'Em UpTop-Down ShooterTwin Stick ShooterMechsHack and SlashRPGBeat 'em upExploration👍 2,491
$14.99Mineral Defense
Nov 15 · Corestone Games
Both: Tower Defense
Mineral Defense combines tower defense with roguelite elements and procedural generation. Build paths, unlock upgrades, and unleash powerful synergies to conquer evolving challenges in an ever-expanding world.
StrategyRogueliteTower DefenseCard GameRoguelike3DBase BuildingCasualDeckbuildingProcedural Generation👍 220
$4.99BANAN'EM UP!
Jul 1 · SkyBrave
Both: Shoot 'Em Up · Shooter · Arcade
BANAN'EM UP! is a tiny challenging arcade shoot’em up where you shoot down quirky aliens to save your planet. Evade bullets, shoot enemies, get upgrades, survive for challenging waves to defeat the final boss, "The MONKE". Die, learn, repeat: get stronger, be powerful!
Bullet HellShoot 'Em UpPvEShooterArcade2DTop-DownControllerGun CustomizationLinear
$14.99IDUN - Frontline Survival
Jan 20 · IDUN Interactive
Both: Tower Defense · Survival
A defense RTS where you can move turrets at will. Extract resources, upgrade technology, and defend against enemy swarms in a gripping space campaign. Hold the line, set up your turrets, and brace for screen-filling hordes!
3DBuildingWargameTower DefenseStrategyRTSSurvivalBase BuildingMiningSci-fi👍 685
$7.99Arcadium - Space Odyssey
Jan 26 · Luciano Bercini
Both: Arcade · Aliens
A bullet heaven roguelite set in a procedurally generated universe. Land on planets to harvest resources, craft hundreds of game-breaking builds, and unleash them on relentless waves of aliens. Every run unveils a new universe: endless challenges, endless discoveries.
Bullet HeavenRogueliteArcadeAction RoguelikeBullet HellProcedural GenerationTwin Stick ShooterTop-Down ShooterSpaceAliens👍 110
-20%$15.99SENTRY
Mar 25 · Fireblade Software
Both: Tower Defense · Survival
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.
Tower DefenseStrategyFPSSci-fiSurvivalActionColorfulStylized3DFirst-Person👍 847
$39.99HELLDIVERS™ 2
Feb 8 · Arrowhead Game Studios
Both: Shooter
The Galaxy’s Last Line of Offence. Enlist in the Helldivers and join the fight for freedom across a hostile galaxy in a fast, frantic, and ferocious third-person shooter.
Online Co-OpPvEThird-Person ShooterMultiplayerShooterActionCo-opSci-fiExtraction ShooterCapitalism👍 839,048
$8.99Gunstorm
Feb 23 · Cornutopia Software
Both: Shooter · Arcade · Shoot 'Em Up
Gunstorm is a space shooter loaded with playability. Wave after wave of alien craft attack your agile ship. Use the mouse to control your ship at the speed of thought in a perfectly balanced game that starts easy and gradually gets more difficult.
Arena ShooterTop-Down Shooter1980sShooterArcadeShoot 'Em Up2D3DTop-DownFunny
$11.99ROBOCRACY
Nov 29 · DGMA
Both: Arcade · Shooter · Shoot 'Em Up
Take on the challenge and face off against a rogue AI bent on enslaving humanity! Strap on your VR headset, step into the boots of a Galactic Ranger, and tear through waves of robots with explosive blasters, devastating shotguns, and an insane arsenal — just like classic arcade shooters!
AtmosphericColorfulSci-fiOld SchoolActionVRSpaceArcadeShooterShoot 'Em Up
