Games like Alien Hallway
by Sigma Team Inc.
Players measure stamina with a never-ending stream of green creatures within the borders of a special military mission.
View on Steam · $4.99 →
Ranked by how similar the games actually are, not by sales. Released and Price are remembered for next time.
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$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
$9.99Cluckmech 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
$39.99Alien: Rogue Incursion VR
Dec 19 · Survios
Both: Aliens · Shooter · Sci-fi
Alien: Rogue Incursion is an all-new action-horror VR game that transforms you into ex-Colonial Marine Zula Hendricks on a dangerous mission to the uncharted planet Purdan, featuring innovative real-life motion gameplay, a whole-body loadout, and the most cunning Xenomorphs ever encountered.
AliensVRActionStory RichShooterCombatSingleplayerSci-fiRealisticAtmospheric👍 1,341
$24.99Outpost: Infinity Siege
Mar 26 · Team Ranger
Both: Tower Defense · Sci-fi
Command Mobile Outpost and take XEN Firearm to venture deep into the Signet surveillance off-limit area. Collect unique Weapon Units. Amp up the firepower of the Outpost that fights with you. This is an FTD game - FPS, Tower Defense, Base Building and much more all at the same time.
Robots3DTower DefenseBase BuildingFPSResource ManagementCo-opSingleplayerPost-apocalypticSci-fi👍 11,637
-40%$10.49Tower Dominion
May 7 · Parallel 45 Games
Both: Tower Defense
Build and design the terrain while defending your stronghold against alien invasion in this unique Roguelike tower defense. Choose from 30 heroes, survive enemy waves, and upgrade a variety of destructive towers to hold the line!
Tower DefenseStrategyBase BuildingRoguelikeRTSTacticalRogueliteChoices MatterProcedural GenerationResource Management👍 5,124
$9.99The Anacrusis
Dec 5 · Stray Bombay
Both: Shooter · Sci-fi
Battle for survival against endless alien hordes with your friends! The Anacrusis is a first-person shooter that dynamically adjusts difficulty to you. Experience intense 1-4 player co-op action or play as the aliens and stop your friends in 1-8 player Versus mode. Full Steam Workshop support!
PvEFPSCo-opPvPShooterAction-AdventureModdableSci-fiSpaceFemale Protagonist👍 617
$11.99Palpus X Annihilation
Feb 17 · Sebastian Vargek (Meister Palpus)
Both: Shooter · Aliens · Sci-fi
Isometric action shooter with light RPG elements. Brutally kill tons of alien monsters, find over a dozen powerful weapons, skill up your hero & stop the blood thirsty invaders in a classic handcrafted campaign. Never ending waves await you in horde-mode!
ActionShooter2DIsometricAliensSci-fiCombatIndieViolentSingleplayer
-30%$8.39From Glory To Goo
Apr 2 · Stratagem Blue
Both: Tower Defense
From Glory To Goo is a Sci-Fi survival RTS set on an alien world. Serve as humanity's bulwark by establishing a colony and supporting your colonists still in orbit. But beware, for The Goo, a relentless and shape-shifting force approaches from all sides, even above and below.
Base BuildingRTSTower DefenseReal-Time with PauseAction RTSResource ManagementColony SimCity BuilderStrategySandbox👍 1,796
$24.99Deadzone: Rogue
Aug 11 · Prophecy Games
Both: Shooter
Deadzone: Rogue is a roguelite FPS set in space. Blast through swarms of hostile machines, combine powerful augments and elements to forge your build, and grow stronger with each run — solo or in co-op.
RoguelikeFPSOnline Co-OpPvERogueliteLooter ShooterFirst-PersonShooterHorrorDungeon Crawler👍 15,055
$6.99Insect Swarm
Sep 11 · Parallel Portal
Both: Shooter
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
$19.99Creeper World IXE
Dec 12 · Knuckle Cracker
Both: Tower Defense
The unstoppable alien force known as The Creeper has returned, devouring thousands of worlds in its path, and yours is next. Battle against the Creeper fluid in a groundbreaking pixel-level simulation to prove that humanity will rule the galaxy forever!
RTSTower DefenseWargameReal Time TacticsSandboxSpace1980sWarPhysicsStrategy👍 855
-75%$4.99Level Zero: Extraction
Jan 29 · Doghowl Games
Both: Aliens · Shooter
Tactical extraction shooter meets immersive survival horror. Play as rival mercenaries fighting for loot, or as alien monsters hunting humans from the shadows. Solo or with friends, experience this unique dark take on asymmetrical PvPvE multiplayer.
Survival HorrorPvPExtraction ShooterAliensFPSPvEMultiplayerTacticalEarly AccessShooter👍 2,448
$7.99Swarm Grinder
Apr 22 · Last Bite Games
An action roguelite game with alien swarms and mechs. Battle enemies to make your way through a mass of spreading and evolving cells hosting dormant enemies. Collect a variety of game-changing skills and upgrades to create unique builds.
RoguelikeRogueliteAction RoguelikeBullet HellMechsProcedural Generation2DPixel GraphicsControllerAction RPG👍 1,164
$39.99Xenonauts 2
Apr 2 · Goldhawk Interactive
Both: Sci-fi
Wage a global war of resistance against an alien invasion. Command turn-based tactical battles, build a network of covert bases, directly control your fighter wings, and achieve strategic victory in a simulation of asymmetric warfare against a technologically superior foe.
StrategyRPGTurn-Based TacticsTurn-Based StrategySci-fiTurn-Based CombatTacticalTurn-BasedPvECharacter Customization👍 4,857
$9.99Space Dragons
Aug 2 · TEAM Black Hat Robot
Both: Shooter · Aliens
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
$24.99M.A.S.S. Builder
Sep 14 · Vermillion Digital
Both: Sci-fi · Shooter
Commander, customize and build your Mechanical Assault Skeleton Suit (M.A.S.S.) and lead the fight against an alien invasion bent on exterminating the human race. The fate of humanity is in your hands.
MechsAction RPGCharacter CustomizationRobotsGun CustomizationIndieHack and SlashSci-fiAnimeShooter👍 3,729

