Games like Iron Sky: Invasion
by Reality Pump
Moon Nazis. Spaceships. Bad news all around. Fight as an elite pilot in an open-world space battlefield, upgrade your ships, and stop history from getting a second round — this time in orbit.
View on Steam · $19.99 →
Ranked by how similar the games actually are, not by sales. Released and Price are remembered for next time.
Closest matches
$19.99Moon Mystery
Oct 28 · Cosmoscouts
Both: Sci-fi · Space
The Moon's haunted - and when an astronaut loses contact with Earth, the adventure begins in full. Fill up your oxygen, load up the guns, and set out on an interstellar FPS adventure across the stars, filled with puzzles, fights, exploration, and strange secrets of the universe.
AdventureSingleplayerSci-fiFPSSpaceMysteryPuzzleRobotsActionAction RPG👍 551
$59.99Homeworld 3
May 13 · Blackbird Interactive
Both: Space · Sci-fi
Tactical, beautiful, and wholly unique, the GOTY-winning sci-fi RTS returns with Homeworld 3. Assume control and battle through fleet combat in dazzling, fully 3D space while the award-winning story unfolds on a galactic scale.
SpaceRTSStrategySci-fiStory RichSingleplayerMultiplayerTacticalCo-opRoguelike👍 5,438
$29.99Between the Stars
Mar 7 · Isolated Games
Both: Space · Sci-fi
Become the Captain of an interstellar cruiser and journey across the galaxy to save the Republic. During your journey you will have to make important decisions, improve the weaponry of your ship and fight against numerous enemies.
SpaceRPGActionSimulationIndieStrategyAdventureSpace SimSingleplayerSci-fi👍 1,965
-50%$19.99Terra Invicta
Jan 5 · Pavonis Interactive
An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.
StrategyGrand StrategySimulation4XEconomyWarHistoricalTurn-Based StrategyTacticalManagement👍 9,064
$24.99Starcom: Unknown Space
Sep 2 · Wx3 Labs, LLC
Both: Space · Sci-fi
Starcom: Unknown Space is an action RPG of space exploration and adventure. Build your own starship while discovering an epic story in a universe of strange mysteries, alien factions and uncharted worlds.
SpaceExplorationOpen WorldSpace SimAction RPGTop-Down ShooterSci-fiStory RichIndieRPG👍 4,465
$24.99Executive Assault 2
Oct 18 · Hesketh Studios Ltd
Both: Space
The RTS/FPS phenomenon has moved into space! Build your base on an asteroid, command fleets of starships for epic battles, pilot fighters, mine and trade resources, assemble robots to defend or assault other stations. Take sole command or share the glory as you fight for control of the quadrant.
RTSBuildingSpace SimStrategyBase BuildingSpaceReal-TimeFPSActionSingleplayer👍 1,604
$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
$39.99HELLDIVERS™ 2
Feb 8 · Arrowhead Game Studios
Both: Sci-fi
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
$29.99Starship Troopers: Extermination
Oct 10 · Offworld
Both: Sci-fi
Starship Troopers: Extermination is an up to 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!
Online Co-OpActionFPSSci-fiFirst-PersonCo-opMultiplayerCombatAliensPvE👍 29,725
$19.99Astrometica
Dec 10 · BeryMery
Both: Space · Sci-fi
Astrometica is a space exploration and base-building survival game. After a catastrophic event, explore vast space, gather resources, build bases, and uncover cosmic mysteries. Use advanced technology, craft tools, and discover new blueprints to survive and thrive in the unknown.
Space SimSurvivalOpen WorldFirst-PersonAdventureCraftingSpaceAutomationBase BuildingSci-fi👍 2,913
$23.99The Planet Crafter
Apr 10 · Miju Games
Both: Space
A space survival open world terraforming crafting game, designed for 1 to 10 players. Alter the ecosystem of an inhospitable planet to render it habitable for humanity. Survive, gather resources, and build your base. Then, generate oxygen, warmth, and pressure to create a brand new biosphere.
Base BuildingOpen World Survival CraftSurvivalOnline Co-OpCo-opBuildingCraftingSpaceOpen WorldExploration👍 68,913
-60%$15.99ZEPHON
Nov 8 · Proxy Studios
Both: Sci-fi
From the developers of Warhammer 40,000: Gladius, ZEPHON is a post-apocalyptic 4X strategy game built on Proxy’s unique tactical combat system. Guide survivors through a turbulent future, navigating unexpected disasters, eldritch horror and cyberpunk monstrosities. What will you do to survive?
StrategyTurn-Based4XTacticalMultiplayerLovecraftianSandboxCo-opSci-fiProcedural Generation👍 1,841
$34.99Abiotic Factor
Jul 22 · Deep Field Games
Both: Sci-fi
Abiotic Factor is a survival crafting experience for 1-6 players set in the depths of an underground research facility. Caught between paranormal containment failure, a military crusade, and chaos from a dozen realms, the world’s greatest minds must survive against the universe’s biggest threats.
SurvivalOnline Co-OpOpen World Survival CraftCraftingBase BuildingSci-fiExplorationCo-op CampaignMultiplayerFirst-Person👍 42,120
$5.99Frontline Crisis
Aug 14 · BCQT
Both: Space
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
$5.99Space Operators
Mar 20 · Bitheiro
Both: Space · Sci-fi
This is an old-school tank shooter set in space. Conquer newly discovered moons for Mega Corporation Mining Industry to earn your paycheck and make your parents proud! Win battles with your drone by blowing up your rivals in this retro pixel art game.
SpaceTurn-Based TacticsPoint & ClickTurn-Based StrategyStrategySci-fi2DRetroChoices MatterMultiple Endings


