- #1 X4: Foundations
97% matchMostly Positive80% of 28,557 reviews2018
Dev: Egosoft
Windows · Linux
Median: 5.0 hrsMean: 94.7 hrs≥1hr: 80%
Your journey to building a vast space empire begins behind the controls of a single ship. Explore, trade, fight, and build as you rise to command fleets, stations, and entire economies in a living, fully simulated universe that reacts to every decision.
Why similar: Space Sim 25%, Flight 19.6%, Economy 11.1%, Space 10.7%, Open World 9.3%
Why You'll Like It: It offers the most comprehensive space-sim experience with deep economy, fleet management, and empire-building mechanics similar to the seed game.
- #2 EVERSPACE™ 2
96% matchVery Positive86% of 12,733 reviews2023
Dev: ROCKFISH Games
Windows · Mac
Median: 7.6 hrsMean: 28.9 hrs≥1hr: 88%
EVERSPACE 2 is a fast-paced single-player spaceship shooter with exploration in space and on planets, tons of loot, RPG elements, mining, and crafting. Experience an exciting sci-fi story set in a vivid, handcrafted open world full of secrets, puzzles, and perils.
Why similar: Flight 35.6%, Space 23.2%, Open World 19.7%, Third Person 11.9%, RPG 9.6%
Why You'll Like It: Matches the seed game's focus on action-RPG progression and high-octane space combat in an open world.
- #3 Elite Dangerous
96% matchMostly Positive77% of 105,919 reviews2015
Dev: Frontier Developments
Windows
Median: 18.3 hrsMean: 147.5 hrs≥1hr: 89%
Take control of your own starship and blaze your trail in an ever-changing galaxy. Master the arts of combat, mining and trade or venture out into the unknown across a 1:1 scale universe.
Why similar: Space Sim 54%, Space 20.4%, Open World 16.6%, First-Person 4.5%, RPG 3.3%
Why You'll Like It: Provides an unparalleled sense of scale and realistic flight mechanics for players who prioritize the pilot experience.
- #4 Avorion
95% matchVery Positive90% of 14,391 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.7 hrsMean: 99.8 hrs≥1hr: 90%
A procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy.
Why similar: Space Sim 26.7%, Flight 20.3%, Economy 10.4%, Space 10.1%, Open World 9.1%
Why You'll Like It: Focuses heavily on modular ship building and sandbox exploration in a procedurally generated galaxy.
- #5 Star Valor
94% matchVery Positive89% of 3,349 reviews2022
Dev: Rafael Burgos
Windows
Median: 4.1 hrsMean: 28.8 hrs≥1hr: 78%
Choose your own destiny as you explore an open-world procedurally generated galaxy where anything is possible. Become a miner, a trader, a bounty hunter, a pirate, or perhaps a jack of all trades. Start off small and build your way to the top but remember with every action, comes consequences.
Why similar: Mining 33% ★, Space 31.7%, Open World 21.1%, RPG 14.2%
Why You'll Like It: Captures the RPG-focused progression and ship customization loop found in the seed game.
- #6 Starfield
94% matchMixed57% of 173,406 reviews2023
Dev: Bethesda Game StudiosPub: Bethesda Softworks
Windows
Median: 36.7 hrsMean: 75.3 hrs≥1hr: 97%
Starfield is the first new universe in 25 years from Bethesda Game Studios, the award-winning creators of The Elder Scrolls V: Skyrim and Fallout 4.
Why similar: Space 24.8%, Space Sim 24.8%, Open World 20.9%, RPG 12.4%, Third Person 9.2%
Why You'll Like It: Delivers a lore-rich, RPG-heavy experience with extensive ship customization and exploration across a vast galaxy.
- #7 Starpoint Gemini Warlords
93% matchMostly Positive73% of 3,581 reviews2017
Dev: Little Green Men Games
Windows
Median: 4.1 hrsMean: 11.0 hrs≥1hr: 87%
Strategy from the front lines! Starpoint Gemini Warlords combines 3rd person capital spaceship combat with 4X strategy and RPG gameplay elements. Build mighty war fleets and send them into battle or lead them into combat yourself. Become the Warlord and conquer the Gemini system!
Why similar: Space Sim 27.7%, Flight 17.7%, Space 13.9%, Base Building 13.4%, Open World 11.2%
Why You'll Like It: Blends RPG character development with grand-scale fleet command and conquest mechanics.
- #8 Underspace
92% matchVery Positive81% of 442 reviews2024
Dev: Pastaspace InteractivePub: Camlann Games
Windows
Median: 36 minMean: 5.3 hrs≥1hr: 42%
The spiritual successor to Freelancer with a Lovecraftian, sandbox RPG twist. Explore a vast handmade universe with Day 1 mod support and a planned PvP/co-op multiplayer on the Early Access roadmap. You're going to need a bigger ship.
Why similar: Flight 28.8%, Space Sim 28.2%, Space 11.9%, Open World 10%, Third Person 8.5%
Why You'll Like It: A modern, arcade-style space sim that emphasizes combat and exploration in a massive, dangerous universe.
- #9 Empyrion - Galactic Survival
91% matchMostly Positive79% of 34,194 reviews2020
Dev: Eleon Game Studios
Windows
Median: 6.3 hrsMean: 76.8 hrs≥1hr: 77%
Build and explore in a true space sandbox survival adventure. Construct mighty capital vessels, sprawling planetary settlements, and vast space stations in your galactic journey to discover the mysteries of Empyrion!
Why similar: Space Sim 40.1%, Space 18.1%, Open World 16.2%, Building 13.2%, Crafting 8.6%
Why You'll Like It: Strongly emphasizes the base-building and survival elements within a seamless space-to-planet environment.
- #10 No Man's Sky
91% matchVery Positive85% of 406,987 reviews2016
Dev: Hello Games
Windows · Mac
Median: 20.2 hrsMean: 70.4 hrs≥1hr: 94%
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
Why similar: Space Sim 29.2%, Space 27.8%, Open World 27.5%, First-Person 8.8%, Crafting 6.8%
Why You'll Like It: Excels at the open-world exploration and base-building aspects that make the seed game so immersive.
- #11 Starcom: Unknown Space
89% matchVery Positive93% of 4,302 reviews2024
Dev: Wx3 Labs, LLC
Windows
Median: 8.4 hrsMean: 16.9 hrs≥1hr: 83%
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.
Why similar: Space Sim 36.9%, Space 21.7%, Open World 15.5%, Lore-Rich 11.7%, RPG 7.3%
Why You'll Like It: Offers a fantastic exploration-heavy experience with modular ship building and narrative discovery.
- #12 Void Destroyer 2
90% matchVery Positive80% of 667 reviews2020
Dev: Iteration 11
Windows
Median: 2.8 hrsMean: 14.5 hrs≥1hr: 75%
Start with nothing... End with everything! All you have is a basic ship, barely fit for combat, with it you'll start your journey and empire. A open world space sandbox, inspired by and expanding the classics.
Why similar: Space Sim 31.4%, Flight 18.7%, Mining 14.7% ★, Open World 11.2%, Space 10.7%
Why You'll Like It: Combines intense space combat with strategic elements and empire management in an open sandbox.
- #13 Interstellar Rift
89% matchMixed68% of 1,660 reviews2020
Dev: Split PolygonPub: Iceberg Interactive
Windows
Median: 4.2 hrsMean: 33.5 hrs≥1hr: 83%
Interstellar Rift is an open world starship simulator with an emphasis on ship construction and multi-player interaction. Survive in a hostile galaxy with your own custom designed and constructed starship. Invite other players to join your crew or fight them across the galaxy!
Why similar: Space Sim 33.7%, Mining 16.9% ★, Open World 11.9%, Space 10.7%, Building 9.6%
Why You'll Like It: Focuses on the technical side of space simulation, including ship interior design and complex system management.
- #14 Astrox Imperium
88% matchVery Positive85% of 1,220 reviews2019
Dev: Jace Masula
Windows
Median: 4.2 hrsMean: 16.4 hrs≥1hr: 67%
Astrox Imperium is a relaxing space game where you fly around a generated universe. Mining, Fighting, Building, Exploring, and Surviving. What makes this game unique? You have complete control of how it plays. A robust sandbox and lots of MOD tools. Make it your game, and play it your own way.
Why similar: Space Sim 41.7%, Space 27.2%, Mining 17.9% ★, Open World 13.2%
Why You'll Like It: A deep, indie-developed space sim that prioritizes RPG-like skill progression and ship management.
- #15 Rebel Galaxy Outlaw
87% matchMixed64% of 1,154 reviews2020
Dev: Double Damage Games
Windows
Median: 42 minMean: 9.1 hrs≥1hr: 42%
Out of cash, out of luck, out on the fringe. Juno Markev has a killer to tail, a debt to pay, and more trouble headed her way. Rebel Galaxy Outlaw takes place in a greasy, blue-collar world of outlaws, truckers, cops and thieves.
Why similar: Space Sim 41.8%, Open World 14.2%, Flight 11.2%, Space 8.5%, RPG 7.8%
Why You'll Like It: Focuses on the gritty, pilot-centric combat and narrative-driven space adventure experience.
- #16 Between the Stars
86% matchMostly Positive75% of 2,444 reviews2024
Dev: Isolated Games
Windows
Median: 54 minMean: 8.8 hrs≥1hr: 49%
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.
Why similar: Space Sim 38.6%, Space 23.7%, RPG 12.7%, Flight 10.4%, Open World 7.3%
Why You'll Like It: Offers a similar blend of RPG elements and tactical space combat within a narrative framework.
- #17 Starship EVO
85% matchVery Positive84% of 1,435 reviews2020
Dev: Moonfire Entertainment
Windows
Median: 1.5 hrsMean: 6.4 hrs≥1hr: 57%
Mine and craft your way to orbit, build your own starship and explore a vast, dangerous galaxy alongside your crew. For players who love a meaningful survival progression, a unique and elegant building system, and epic space-opera scale.
Why similar: Space Sim 36.5%, Space 28.7%, Building 21.9%, Open World 12.9%
Why You'll Like It: Provides an incredibly detailed ship-building and engineering sandbox for players who love technical customization.
- #18 X3: Reunion
86% matchMostly Positive72% of 728 reviews2006
Dev: Egosoft
Windows · Mac · Linux
Median: 36 minMean: 8.8 hrs≥1hr: 41%
X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue.
Why similar: Space Sim 35.3%, Space 23.2%, Flight 15.5%, Economy 13.7%, Open World 8.1%
Why You'll Like It: A classic title that defined the genre's depth regarding economy and faction-based space simulation.
- #19 Genesis Alpha One Deluxe Edition
84% matchMixed69% of 2,490 reviews2020
Dev: Radiation BluePub: Team17 Digital Ltd
Windows
Median: 54 minMean: 8.7 hrs≥1hr: 49%
Hyperjump into the dark recesses of space with Genesis Alpha One - a roguelike FPS where you must build, maintain and navigate your ship through a galaxy filled with hostile alien and human threats. Explore, create and survive the militarized space race in order to secure humanity’s future.
Why similar: Space Sim 25.4%, Science 16.2%, Base Building 15.3%, Open World 9.8%, Space 9.4%
Why You'll Like It: Unique blend of first-person base management and action-oriented space exploration.
- #20 Space Pirates And Zombies 2
84% matchMostly Positive79% of 2,833 reviews2017
Dev: MinMax Games Ltd.
Windows · Mac · Linux
Median: 4.6 hrsMean: 13.5 hrs≥1hr: 81%
Design and then improve the ultimate mothership. Explore a persistent living galaxy populated by 200 unique captains that can do everything you can do. Survive the zombie infection and then fight them back. Make allies and start your own faction. Build your empire. Also includes Sandbox Mode.
Why similar: Space 38.8%, Open World 19.8%, RPG 13.4%, Space Sim 11.3%, Strategy 8.5%
Why You'll Like It: Features deep ship customization and a dynamic faction system that mirrors the seed game's ambition.
- #21 Space Haven
80% matchVery Positive86% of 10,442 reviews2026
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 19.9 hrs≥1hr: 72%
Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.
Why similar: Space Sim 30.4%, Base Building 20.9%, Space 13.7%, Open World 11.1%, Management 10.1%
Why You'll Like It: Focuses on the management and survival aspects of building a home among the stars.
- #22 Starcom: Nexus
82% matchVery Positive91% of 2,295 reviews2019
Dev: Wx3 Labs, LLC
Windows · Linux
Median: 3.7 hrsMean: 13.4 hrs≥1hr: 84%
Suddenly thrown into an unknown galaxy, you must explore, fight or befriend aliens and transform your ship from a small survey vessel into a powerful battlecruiser to unravel the mystery of the forces that brought you here and find your way home.
Why similar: Space Sim 33.8%, Space 32.8%, Open World 14.4%, RPG 12.3%, Building 6.7%
Why You'll Like It: An earlier entry that excels at providing a sense of wonder through exploration and RPG-lite progression.
- #23 Astro Colony
81% matchVery Positive82% of 2,526 reviews2022
Dev: Terad Games
Windows
Median: 4.5 hrsMean: 16.3 hrs≥1hr: 78%
Explore endless Universe and create the most efficient constellation of colonies. Build conveyor systems to automate production. Take care of Astronauts and their needs! Establish new colonies as part of intergalactic simulation.
Why similar: Base Building 26.2%, Space Sim 24.3%, Space 15.6%, Open World 9.6%, Building 9.3%
Why You'll Like It: Focuses on the automation and base-building aspects of space exploration for those who enjoy management.
- #24 Celestial Command
83% matchMixed63% of 698 reviews2014
Dev: Romenics
Windows · Mac · Linux
Median: 1.5 hrsMean: 6.3 hrs≥1hr: 62%
Mine asteroids, salvage space debris, design your own small or massive spacecraft using individual functional components, complete missions, and engage in battles against enemies in a vast galaxy with realistic physics based on orbital mechanics or in a classic physics mode.
Why similar: Space 33.7%, Space Sim 32.9%, RPG 10.8%, Building 10.1%, Open World 6.3%
Why You'll Like It: A physics-based space simulation that rewards creative building and strategic thinking.
- #25 Starpoint Gemini 2
82% matchMixed70% of 4,114 reviews2014
Dev: Little Green Men Games
Windows
Median: 3.0 hrsMean: 5.3 hrs≥1hr: 88%
Captain your own space ship and roam the galaxy in 3D in this tactical space simulator with tons of RPG depth ! Space has never looked so inviting - but images can betray...It has been two years since the end of the second Gemini war, the situation in the wartorn system is further from resolution than ever.
Why similar: Space Sim 23.8%, Space 19.8%, Flight 18.1%, Science 14%, Open World 9.2%
Why You'll Like It: A solid RPG-focused space simulation that emphasizes exploration and ship-to-ship combat.
- #26 Executive Assault 2
79% matchVery Positive83% of 1,738 reviews2023
Dev: Hesketh Studios Ltd
Windows · Mac
Median: 3.8 hrsMean: 8.4 hrs≥1hr: 76%
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.
Why similar: Space Sim 38.1%, Base Building 20%, Space 12.7%, Building 11.4%, War 8.2%
Why You'll Like It: A unique hybrid that allows players to switch between RTS-style base building and first-person space combat.
- #27 The Last Starship
78% matchMostly Positive75% of 1,491 reviews2026
Dev: Introversion Software
Windows · Mac
Median: 6.1 hrsMean: 11.2 hrs≥1hr: 81%
The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!
Why similar: Space Sim 27.2%, Mining 16% ★, Base Building 15.4%, Science 13.9%, Space 11%
Why You'll Like It: Focuses on the strategic design and management of a single, powerful vessel in a dangerous galaxy.
- #28 Astrometica
78% matchVery Positive83% of 3,055 reviews2024
Dev: BeryMeryPub: RockGame S.A.
Windows
Median: 4.1 hrsMean: 17.3 hrs≥1hr: 73%
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.
Why similar: Space Sim 40.6%, Base Building 16.5%, Open World 14%, Space 12.8%, First-Person 8.1%
Why You'll Like It: Offers a first-person survival experience that emphasizes the isolation and wonder of space exploration.
- #29 Space Engineers 2
77% matchMostly Positive76% of 4,590 reviews2025
Dev: Keen Software House
Windows
Median: 1.4 hrsMean: 7.9 hrs≥1hr: 60%
Space Engineers 2 is a playable Early Access Alpha sandbox focused on engineering, exploration, and colonization in a fully destructible universe. Design and build ships, stations, and planetary bases while uncovering the story of Miro and Ivan Sokol. Help shape the future of the Almagest system.
Why similar: Space Sim 23.1%, Science 20.1%, Mining 15.4% ★, Space 12.7%, Open World 10.7%
- #30 X Rebirth
81% matchMixed44% of 7,309 reviews2013
Dev: Egosoft
Windows · Mac · Linux
Median: 3.3 hrsMean: 19.2 hrs≥1hr: 88%
In the distant future, the X universe faces a period of profound and irrevocable change. While the universe stumbles towards an uncertain future, countless adventures await as new enemies rise in search of power.
Why similar: Space Sim 39.5%, Space 39.2%, Open World 9.8%, Economy 9.4%, Management 1%
Why You'll Like It: Provides a more narrative-driven, cinematic approach to the space simulation genre.
- #31 Evochron Mercenary
79% matchMostly Positive77% of 434 reviews2012
Dev: StarWraith 3D Games LLC
Windows
Median: 2.7 hrsMean: 6.8 hrs≥1hr: 73%
The life of an independent mercenary is rarely without excitement. Your spacecraft awaits and your adventure begins in the Sapphire star system.
Why similar: Space Sim 40.1%, Space 29%, Flight 17.2%, Open World 13.7%
Why You'll Like It: A hardcore, simulation-heavy title for players who want total control over their flight and navigation.
- #32 SpaceBourne
77% matchMostly Positive77% of 807 reviews2020
Dev: Burak Dabak
Windows
Median: 1.9 hrsMean: 9.7 hrs≥1hr: 59%
Spacebourne is an open space exploration game with Rpg elements. Its world consists of different factions at war. You as an expert pilot need to choose your side or be on no one's side and create a force of your own. Load up your weapons, Ready your ship and warp to adventure.
Why similar: Space Sim 48.1%, Space 32.2%, RPG 19.8%
- #33 Sins of a Solar Empire II
74% matchVery Positive84% of 8,352 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 30.1 hrs≥1hr: 85%
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
Why similar: Space 51.6%, Base Building 28.5%, Strategy 12.8%, 3D 7.2%
- #34 Rebel Galaxy
76% matchVery Positive85% of 8,321 reviews2015
Dev: Double Damage Games
Windows · Mac
Median: 1.8 hrsMean: 13.5 hrs≥1hr: 62%
Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.
Why similar: Space 34.3%, Space Sim 33.7%, Open World 18.2%, RPG 9.2%, Third Person 3.9%
- #35 Cosmoteer: Starship Architect & Commander
74% matchVery Positive94% of 12,599 reviews2022
Dev: Walternate Realities
Windows
Median: 19.4 hrsMean: 41.0 hrs≥1hr: 92%
Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!
Why similar: Space Sim 52.9%, Space 23.6%, Building 17.7%, Strategy 5.8%
- #36 Solargene
73% matchMostly Positive77% of 836 reviews2026
Dev: Alexander Semenov
Windows
Median: 4.2 hrsMean: 34.2 hrs≥1hr: 72%
Take Command of a Space Corporation in the Sci-Fi Simulator Solargene! Manage personnel, design and develop colonies and orbital stations across the solar system! Mine resources, establish logistics, research cutting-edge technologies, trade, and complete missions
Why similar: Space Sim 30.1%, Base Building 18%, Flight 12.4%, Economy 12%, Space 9.2%
- #37 Endless Sky
75% matchVery Positive92% of 7,005 reviews2015
Dev: Michael Zahniser
Windows · Mac · Linux
Median: 1.0 hrsMean: 13.6 hrs≥1hr: 50%
Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.
Why similar: Space 37.9%, Space Sim 27.9%, Open World 19.2%, RPG 7.3%, Economy 6.6%
- #38 Space Commander: War and Trade
75% matchMixed67% of 694 reviews2020
Dev: Home Net Games
Windows · Mac · Linux
Median: 1.2 hrsMean: 9.2 hrs≥1hr: 56%
Fight, explore the stars, trade, and lead your fleet across the galaxySpace Commander: War and Trade is an ultimate single player space-sim featuring spectacular graphics, intuitive combat and deep mechanics.
Why similar: Space Sim 30.7%, Flight 22.1%, Base Building 18.6%, Economy 9.2%, RPG 8.3%
- #39 StarMade
76% matchMixed68% of 2,982 reviews2014
Dev: Schine GmbH
Windows · Mac · Linux
Median: 1.3 hrsMean: 18.8 hrs≥1hr: 54%
The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!
Why similar: Space 30.6%, Space Sim 20.8%, Open World 20%, Building 14.1%, Crafting 6.6%
- #40 Airship: Kingdoms Adrift
72% matchMostly Positive76% of 1,038 reviews2023
Dev: Revolution IndustryPub: indie.io
Windows
Median: 6.2 hrsMean: 22.0 hrs≥1hr: 79%
Welcome to Suthseg! As the newly commissioned airship captain, forge a mercantile empire across the archipelago, until the great powers of Europa turn their attention toward it. Build up a fleet, chart trade routes, establish industries, and explore the frontier at your airship's helm!
Why similar: Space Sim 36.5%, Lore-Rich 18.2%, Open World 13%, RPG 12.2%, Management 10.9%
- #41 Starbase
73% matchMixed56% of 6,719 reviews2021
Dev: Frozenbyte
Windows
Median: 14.3 hrsMean: 91.3 hrs≥1hr: 91%
Starbase is a hybrid voxel/vertex-based space MMO with a fully destructible and infinitely expanding universe, with a focus on building and designing spaceships and stations, exploration, resource gathering, crafting, trading, and combat.
Why similar: Space Sim 43.4%, Open World 17.1%, Space 15.1%, Building 13.7%, Crafting 6.5%
- #42 Occupy Mars: The Game
69% matchMostly Positive70% of 3,070 reviews2026
Dev: ▲ Pyramid Games
Windows
Median: 4.4 hrsMean: 34.4 hrs≥1hr: 78%
Survive and colonize Mars in a highly technical, open-world sandbox game. Build and upgrade your base, discover new regions, conduct mining operations, retrieve water, generate oxygen, grow crops, and fix broken parts.
Why similar: Base Building 25%, Open World 17.2%, Space 16.9%, Building 12.2%, Crafting 10.5%
- #43 Starpoint Gemini 3
73% matchMixed50% of 870 reviews2020
Dev: Little Green Men Games
Windows
Median: 3.2 hrsMean: 5.0 hrs≥1hr: 87%
Fight, loot, explore and craft in the living open world of Starpoint Gemini 3. Assemble your trusty ship and boost your RPG skills to face all challenges.
Why similar: Space Sim 38.8%, Space 16.1%, Open World 12.8%, RPG 8.9%, Third Person 8.5%
- #44 Stellar Wanderer DX
69% matchMostly Positive71% of 56 reviews2026
Dev: Dream Builder StudiosPub: Leoful
Windows
Fight, trade, mine, and explore the galaxy in this old-school space combat simulator. You are a freelance pilot who survived an assassination attempt. Travel the open world, chase bounties, get new ships, upgrade your gear, and, why not, maybe even save humankind!
Why similar: Space Sim 26.2%, Flight 21.3%, Mining 14.2% ★, Space 9.6%, Open World 8.1%
- #45 Kerbal Space Program 2
72% matchMostly Negative26% of 31,673 reviews2023
Dev: Intercept GamesPub: Private Division
Windows
Median: 7.7 hrsMean: 19.3 hrs≥1hr: 86%
Kerbal Space Program 2 is the sequel to the acclaimed space-flight simulation game Kerbal Space Program. Enter the next generation of space adventure with exciting new parts, stunning visuals, fully revamped UI and Map View, and rich new environments to explore.
Why similar: Space Sim 31.1%, Science 29.1%, Space 16.1%, Open World 12%, Building 11.7%
- #46 SPACERIFT: Arcanum System
71% matchMostly Positive77% of 499 reviews2020
Dev: Arcanum Team
Windows
Median: 54 minMean: 10.0 hrs≥1hr: 43%
At the sunset of human life on planet Earth, you are a military pilot controlling a space ship, and you find yourself at the very epicenter of the battle in the solar system. You are forced to retreat into the unknown, distant Arcanum system through hyper-jumping.
Why similar: Space Sim 32.7%, Flight 15.3%, Economy 14.1%, Open World 12.6%, Space 11.3%
- #47 X3: Terran Conflict
71% matchVery Positive85% of 2,848 reviews2008
Dev: Egosoft
Windows · Mac · Linux
Median: 1.1 hrsMean: 32.1 hrs≥1hr: 51%
It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!
Why similar: Space Sim 34.2%, Space 31.5%, Open World 11.3%, Economy 11%, Flight 7.5%
- #48 Solar Expanse - Space Exploration Manager
67% matchVery Positive87% of 941 reviews2026
Dev: SpaceOpsPub: Games Operators
Windows
Median: 4.9 hrsMean: 12.3 hrs≥1hr: 80%
Explore the Solar System. Mine and drop asteroids. Colonize and terraform. Lead the space race and compete with other corporations on your way to profit. Watch the expansion of human race over the centuries.
Why similar: Space Sim 29.1%, Science 25%, Space 15%, Mining 10.1% ★, Management 8.3%
- #49 orbit.industries
71% matchMixed61% of 88 reviews2022
Dev: LAB132Pub: Klabater
Windows · Linux
🚀 Become a Space Pioneer by building and managing a station of your own on the orbit of distant planets! Focus on design and management or fulfill objectives to progress. 🛰️ Explore, Build and Prosper!
Why similar: Space Sim 26.9%, Science 16.6%, Space 15.6%, Economy 10.6%, Artificial Intelligence 8.3%
- #50 Evochron Legacy SE
70% matchVery Positive83% of 442 reviews2016
Dev: StarWraith 3D Games LLC
Windows
Median: 1.5 hrsMean: 6.8 hrs≥1hr: 60%
Advanced Space Flight, Combat, Trading, and Exploration Simulation. Set in a vast explorable universe, Evochron Legacy offers freeform gameplay with many diverse objectives and paths to choose from.
Why similar: Space Sim 54.8%, Space 19.4%, Open World 16%, First-Person 9.8%
- #51 Space Reign
67% matchMostly Positive75% of 431 reviews2026
Dev: Propulsive Games
Windows
An indie space-sim and strategy game featuring ship and fleet combat mixed with RTS elements. Complete contracts and Claim sectors for your faction in the near-future, where resource exploiting corporations are in a state of constant conflict over territory control.
Why similar: Space Sim 49.2%, Space 17.6%, War 9.6%, Third Person 8.4%, First-Person 6.7%
- #52 Star Conflict
70% matchMostly Positive73% of 15,162 reviews2013
Dev: Star Gem Inc.Pub: Gaijin Network Ltd
Windows · Mac · Linux
Median: 2.0 hrsMean: 34.5 hrs≥1hr: 62%
Star Conflict is an action-packed, massively multiplayer space simulation game that puts players in the role of elite pilots engaging in a widespread interplanetary skirmish. The whole world for PVP and PVE!
Why similar: Space Sim 26.9%, Flight 21.3%, Science 18.8%, Open World 9.8%, Third Person 7.5%
- #53 Star Traders: Frontiers
69% matchVery Positive84% of 3,777 reviews2018
Dev: Trese Brothers
Windows · Mac · Linux
Median: 3.4 hrsMean: 24.6 hrs≥1hr: 74%
You are the captain of a starship venturing through a massive open universe. Customize your crew and take command at the helm of your very own ship as you explore a galaxy torn apart by internal strife, alien threats, and political intrigue.
Why similar: Space Sim 37.6%, Economy 15.1%, Space 12%, Management 11.8%, Open World 11.6%
- #54 Darkstar One
70% matchVery Positive83% of 614 reviews2008
Dev: Ascaron Entertainment ltd.Pub: Strategy First
Windows
Median: 1.0 hrsMean: 8.8 hrs≥1hr: 50%
Darkstar One offers a fantastic amount of freedom of choice. The story-based missions gradually lead you deeper into the galaxy to new races, new technologies and ever stronger opponents. Explore a vast array of solar systems in search of hidden artifacts of ancient races, essential objects for upgrading your ship--the Darkstar One.
Why similar: Space Sim 50.1%, Space 28.8%, Open World 13.8%, RPG 7.3%
- #55 Frontier Pilot Simulator
68% matchMixed70% of 954 reviews2021
Dev: RAZAR s.r.o.
Windows
Median: 4.2 hrsMean: 9.8 hrs≥1hr: 84%
FPS is a Sci-Fi cargo pilot sim, with an engaging emergent mission-driven storyline, with a real-time economy with free flight and trading, on an alien world to explore. All in customizable upgradeable, well-simulated VTOL craft with real weather, and flight dynamics.
Why similar: Flight 25.3%, Space Sim 19.8%, Economy 11.6%, Lore-Rich 9.4%, Space 8.8%
- #56 Dyson Sphere Program
65% matchOverwhelmingly Positive98% of 90,697 reviews2021
Dev: Youthcat StudioPub: Gamirror Games
Windows
Median: 13.1 hrsMean: 75.1 hrs≥1hr: 84%
Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.
Why similar: Base Building 25.5%, Space 18%, Space Sim 16.9%, Open World 12.4%, Building 10.5%
- #57 EVERSPACE™
67% matchMostly Positive78% of 11,424 reviews2017
Dev: ROCKFISH Games
Windows · Mac · Linux
Median: 2.8 hrsMean: 9.9 hrs≥1hr: 75%
EVERSPACE™ combines fast-paced combat with roguelike elements, great visuals and a captivating story. It takes you on a challenging journey through an ever-changing, beautifully crafted universe full of surprises. Shoot, craft and loot your way to victory while the odds are stacked against you.
Why similar: Space Sim 40.5%, Space 34.6%, Flight 23.6%, First-Person 1.3%
- #58 Cubic Odyssey
65% matchMostly Positive73% of 2,584 reviews2025
Dev: Atypical GamesPub: Gaijin Network Ltd
Windows
Median: 6.1 hrsMean: 9.8 hrs≥1hr: 85%
Embark on a galactic journey in Cubic Odyssey, an open-world adventure where you explore vibrant planets, craft tools, build vehicles, and fight the Red Darkness. Uncover ancient mysteries, and shape a universe full of life, danger, and limitless possibilities!
Why similar: Base Building 36.8%, Building 17.9%, RPG 15.3%, Open World 8.8%, Space 7.7%
- #59 Hazeron Starship
66% matchVery Positive83% of 105 reviews2023
Dev: Hazeron Freehold LLC
Windows · Linux
Explore and colonize a vast universe. Discover resources. Build cities. Make spacecraft. Walk aboard them. Operate their controls. Command a crew of NPCs. Lift off. Fly up through the atmosphere to outer space. Land on other worlds, anywhere, not at designated places. Build an empire.
Why similar: Flight 33%, Mining 16.2% ★, Economy 14.6%, Space 12.3%, Management 8.9%