- #1 X4: Foundations
97% matchMostly Positive80% of 27,985 reviews2018
Dev: Egosoft
Windows · Linux
Median: 5.1 hrsMean: 94.2 hrs≥1hr: 80%
Your journey to building a vast space empire begins behind the controls of a single ship. Explore the stars, trade goods, fight battles, build stations, buy and equip ships, and command fleets in a living, fully simulated universe that reacts to your decisions.
Why similar: Space Sim 21.7% ★, 4X 15.4% ★, Space 13.3%, Moddable 11.3% ★, Flight 9.5%
Why You'll Like It: Offers an unparalleled sandbox experience where you can pilot individual ships while managing a massive trade and combat empire.
- #2 Avorion
96% matchVery Positive90% of 14,288 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.6 hrsMean: 98.8 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: Spaceships 23.8% ★, Space Sim 20% ★, Space 12.7%, Flight 12.4%, Open World 8.7%
Why You'll Like It: Combines deep ship-building mechanics with open-world exploration and fleet management in a vast galaxy.
- #3 SpaceBourne 2
95% matchMostly Positive77% of 4,992 reviews2025
Dev: Burak Dabak
Windows
Median: 2.4 hrsMean: 10.9 hrs≥1hr: 70%
Embark on a journey to greatness. Get ready for adrenaline-fueled battles and a chance to claim your place in the galaxy. Grab the controls of your ship, gear up for the fight, and unleash your ambition to conquer and build a new empire in the vastness of space.
Why similar: Space Sim 27.7% ★, Flight 17.6%, Space 13.9%, Base Building 13.5%, Open World 11.2%
Why You'll Like It: A modern hybrid that blends third-person space combat, RPG character progression, and galaxy-wide faction warfare.
- #4 Starpoint Gemini 2
96% matchMixed69% of 4,112 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: Spaceships 19.5% ★, Space 18.5%, Space Sim 13.4% ★, Moddable 11% ★, Flight 8.2%
Why You'll Like It: The direct predecessor that offers a similar RPG-focused space simulation experience with a strong emphasis on ship customization.
- #5 Starpoint Gemini 3
94% matchMixed50% of 867 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: Spaceships 29.4% ★, Space Sim 22.5% ★, Space 15.6%, Open World 9.4%, Sci-fi 7.2%
Why You'll Like It: Continues the series' tradition of blending space-sim action with RPG narrative elements in a dynamic galaxy.
- #6 Rebel Galaxy
94% matchVery Positive85% of 8,230 reviews2015
Dev: Double Damage Games
Windows · Mac
Median: 1.8 hrsMean: 13.6 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 35.2%, Space Sim 20.5% ★, Open World 14.1%, Sci-fi 10.6%, RPG 6.1%
Why You'll Like It: Focuses heavily on the visceral experience of commanding capital ships in broadside combat, mirroring the core combat feel of the seed game.
- #7 Distant Worlds 2
93% matchMostly Positive71% of 3,478 reviews2022
Dev: CodeForcePub: Slitherine Ltd.
Windows
Median: 9.3 hrsMean: 42.6 hrs≥1hr: 75%
Distant Worlds 2 is a vast, pausable real-time 4X space strategy game.
Why similar: 4X 36% ★, Grand Strategy 20.3% ★, Space 16.4%, Strategy 9.7%, Sci-fi 8.8%
Why You'll Like It: Provides a deep, complex 4X experience that captures the grand scale of managing a space-faring civilization.
- #8 Battlefleet Gothic: Armada 2
92% matchMostly Positive75% of 10,734 reviews2019
Dev: Tindalos InteractivePub: Focus Entertainment
Windows
Median: 5.0 hrsMean: 22.9 hrs≥1hr: 86%
Battlefleet Gothic: Armada 2 is the new real-time strategy game adapted from Games Workshop’s famous tabletop game that portrays the epic space battles of the Warhammer 40,000 universe.
Why similar: Space 60.3%, Strategy 19.6%, Sci-fi 11.2%, Spaceships 7.5% ★, Singleplayer 1.5%
Why You'll Like It: Provides intense tactical capital ship combat with a strong emphasis on fleet management and strategic positioning.
- #9 Star Traders: Frontiers
91% matchVery Positive84% of 3,754 reviews2018
Dev: Trese Brothers
Windows · Mac · Linux
Median: 3.3 hrsMean: 24.5 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 19.6% ★, Moddable 18.9% ★, Tactical RPG 12.3%, Space 10.5%, Sci-fi 9.1%
Why You'll Like It: A deep tactical RPG that allows you to captain your own ship and navigate complex political landscapes.
- #10 Sins of a Solar Empire II
90% matchVery Positive84% of 8,167 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 28.7 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: 4X 39.8% ★, Space 29.4%, Sci-fi 10.2%, Strategy 9.5%, Base Building 9.1%
Why You'll Like It: An essential title for those who enjoy the 4X strategy and fleet-scale combat aspects of the seed game.
- #11 Void Destroyer 2
91% matchVery Positive80% of 664 reviews2020
Dev: Iteration 11
Windows
Median: 2.4 hrsMean: 14.5 hrs≥1hr: 74%
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: 4X 19.4% ★, Space Sim 18.5% ★, Moddable 12.2% ★, Space 10.6%, Flight 8.9%
Why You'll Like It: Blends space-sim flight mechanics with real-time strategy elements, allowing you to command fleets from the cockpit.
- #12 Between the Stars
89% matchMostly Positive74% of 2,427 reviews2024
Dev: Isolated Games
Windows
Median: 54 minMean: 8.9 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 23.2%, Space Sim 22.8% ★, RPG 8%, Sci-fi 6.9%, Sandbox 6.8%
Why You'll Like It: An indie title that captures the feeling of being a captain in a war-torn galaxy with RPG and combat elements.
- #13 Galactic Civilizations IV
88% matchMostly Positive73% of 2,388 reviews2023
Dev: Stardock Entertainment
Windows
Median: 5.1 hrsMean: 21.9 hrs≥1hr: 85%
Take command of a civilization that has just achieved faster-than-light travel in Galactic Civilizations IV, the newest entry in the award-winning space 4X strategy game series. Explore the galaxy, colonize worlds, shape cultures, make alliances, fight wars and pioneer new technologies.
Why similar: 4X 25.5% ★, Grand Strategy 17.3% ★, Moddable 15.6% ★, Space 15%, Sandbox 8.6%
Why You'll Like It: Focuses on the macro-management of a space empire, perfect for players who enjoy the strategic layer of the seed game.
- #14 X3: Reunion
89% matchMostly Positive72% of 725 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 27.1%, Space Sim 24.9% ★, Sandbox 9.3%, Flight 8.9%, Sci-fi 8.1%
Why You'll Like It: A classic space-sim that offers a complex economy and fleet management system for dedicated sandbox players.
- #15 EVERSPACE™ 2
86% matchVery Positive86% of 12,587 reviews2023
Dev: ROCKFISH Games
Windows · Mac
Median: 7.7 hrsMean: 29.1 hrs≥1hr: 87%
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: Space 27.8%, Flight 20.7%, Open World 17.9%, Sci-fi 10.3%, RPG 7.5%
Why You'll Like It: While more action-oriented, it provides a polished RPG-space-sim experience with excellent ship progression and exploration.
- #16 Homeworld Remastered Collection
87% matchVery Positive88% of 13,977 reviews2015
Dev: Gearbox SoftwarePub: Gearbox Publishing
Windows · Mac
Median: 4.6 hrsMean: 34.0 hrs≥1hr: 85%
Experience the epic space strategy games that redefined the RTS genre. Control your fleet and build an armada across more than 30 single-player missions. Choose unit types, fleet formations and flight tactics for each strategic situation.
Why similar: Space 49.1%, Sci-fi 16.7%, Strategy 14.3%, Moddable 10.8% ★, Simulation 4.2%
Why You'll Like It: The gold standard for tactical fleet command, offering a strategic depth that complements the seed game's wargame elements.
- #17 Stellaris
85% matchVery Positive86% of 191,915 reviews2016
Dev: Paradox Development StudioPub: Paradox Interactive
Windows · Mac · Linux
Median: 19.5 hrsMean: 142.4 hrs≥1hr: 89%
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
Why similar: 4X 26.2% ★, Space 19%, Grand Strategy 18.4% ★, Moddable 9.1% ★, Sandbox 8.7%
Why You'll Like It: The definitive grand strategy experience for those who want to focus on the 4X and empire-building aspects of space conquest.
- #18 Space Pirates And Zombies 2
86% matchMostly Positive79% of 2,826 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 36.2%, Open World 14.1%, Strategy 10.5%, RPG 8.1%, Sandbox 8.1%
Why You'll Like It: Features a unique blend of top-down combat, ship building, and faction-based strategy in a sandbox environment.
- #19 ENDLESS™ Space 2
84% matchVery Positive83% of 22,789 reviews2017
Dev: AMPLITUDE Studios
Windows · Mac
Median: 6.3 hrsMean: 25.9 hrs≥1hr: 87%
ENDLESS™ Space 2 is a Strategic Space Opera, featuring the compelling “just one more turn” gameplay, set in the mysterious ENDLESS™ Universe. As the leader of your civilization, will you impose your vision and build the greatest stellar empire?
Why similar: Strategy 65.3%, Space 12.9%, 4X 11.5% ★, Sci-fi 3.7%, Grand Strategy 3.1% ★
Why You'll Like It: A highly polished 4X strategy game that excels in faction diversity and empire management mechanics.
- #20 Nexus - The Jupiter Incident
84% matchVery Positive86% of 1,053 reviews2007
Dev: Mithis GamesPub: HandyGames
Windows
Median: 1.9 hrsMean: 12.1 hrs≥1hr: 64%
Ambitious megacorporations monopolize the conquest of space and the colonization of the solar system. At the very edge of the solar system, the companies make a discovery that will shift the technological advantage and upset the balance. And so a new conflict is born: "The Jupiter Incident."
Why similar: Space 36.2%, Spaceships 16.5% ★, Sci-fi 14.8%, Strategy 13.7%, Moddable 9.3% ★
Why You'll Like It: Focuses on high-stakes tactical ship combat where managing your fleet's capabilities is key to survival.
- #21 Astrox Imperium
83% matchVery Positive85% of 1,210 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 31.4%, Space Sim 28.4% ★, Sandbox 11.4%, Open World 11.3%, Simulation 7.8%
Why You'll Like It: A deep space-sim that emphasizes mining, trading, and combat within a massive, player-driven sandbox.
- #22 Galactic Civilizations III
82% matchMostly Positive77% of 10,370 reviews2015
Dev: Stardock Entertainment
Windows
Median: 4.6 hrsMean: 17.4 hrs≥1hr: 88%
Build a civilization that will stand the test of time in the largest space-based strategy game ever! Choose from dozens of unique races and make a name for yourself across the galaxy through diplomacy, espionage, technological advances, and more.
Why similar: 4X 26.7% ★, Moddable 18.3% ★, Grand Strategy 16.4% ★, Space 12.3%, Sandbox 9%
Why You'll Like It: A robust 4X strategy game that offers deep customization for your civilization and fleet capabilities.
- #23 VoidExpanse
82% matchMostly Positive71% of 760 reviews2015
Dev: AtomicTorch Studio
Windows · Mac · Linux
Median: 3.8 hrsMean: 6.1 hrs≥1hr: 93%
Explore the vast reaches of VoidExpanse -- mine asteroids, upgrade your ship, trade, complete missions, advance your character and survive fast-paced combat with hostile aliens and mercenaries in the rich and exciting Sci-Fi universe of VoidExpanse!
Why similar: Space 29.6%, Moddable 15.2% ★, Open World 13.8%, Sandbox 10.4%, Sci-fi 9.5%
Why You'll Like It: An open-world space RPG that focuses on exploration, combat, and faction-based progression.
- #24 Star Ruler 2
81% matchVery Positive82% of 719 reviews2015
Dev: Blind Mind Studios
Windows · Linux
Median: 4.0 hrsMean: 8.9 hrs≥1hr: 93%
Massive scale 4X-RTS set in space. Control hundreds of planets, manipulate galactic politics, research numerous advanced technologies, and command thousands of units and hundreds of planets in your quest for galactic dominance.
Why similar: 4X 46.2% ★, Space 27.3%, Sci-fi 12.4%, Strategy 12%, Indie 2.1%
Why You'll Like It: A 4X strategy game that allows for massive scale and tactical control over individual ship designs and fleet movements.
- #25 Interstellar Space: Genesis
80% matchVery Positive84% of 818 reviews2019
Dev: Praxis Games
Windows
Median: 1.3 hrsMean: 11.7 hrs≥1hr: 54%
Interstellar Space: Genesis is a turn-based space 4X strategy game in which you attempt to build a thriving galactic empire. Discover mysteries among the stars, colonize worlds, and engage enemies in tactical turn-based combat on your journey to becoming the ruler of the galaxy!
Why similar: 4X 34.6% ★, Space 17.8%, Grand Strategy 16.2% ★, Sci-fi 9.5%, Strategy 7.1%
Why You'll Like It: A turn-based 4X strategy game that captures the spirit of classic space exploration and empire building.
- #26 StarDrive
81% matchMixed45% of 1,482 reviews2013
Dev: Zero Sum Games
Windows
Median: 2.3 hrsMean: 6.7 hrs≥1hr: 88%
As a space bear, human or any other race, venture forth into the galaxy, create custom ships, conquer new worlds, build new colonies and defend your very existence against those who would take what is yours.
Why similar: 4X 50.4% ★, Space 24.9%, Strategy 12.4%, Sci-fi 9.1%, Indie 2.5%
Why You'll Like It: Combines 4X strategy with real-time combat, allowing for custom ship designs and tactical fleet battles.
- #27 Halcyon 6: Starbase Commander
78% matchVery Positive84% of 1,312 reviews2016
Dev: Massive Damage, Inc.
Windows · Mac · Linux
Median: 4.7 hrsMean: 6.7 hrs≥1hr: 93%
Halcyon 6: Starbase Commander is a retro space strategy RPG with base building, deep tactical combat, crew management and emergent storytelling.
Why similar: Space 28.2%, Strategy RPG 15.6%, Base Building 15.5%, Strategy 12.5%, Tactical RPG 9.9%
Why You'll Like It: A retro-styled strategy RPG that focuses on base management and tactical turn-based combat.
- #28 StarMade
79% matchMixed68% of 2,981 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 31.9%, Sandbox 17.5%, Open World 15.8%, Space Sim 13% ★, Sci-fi 8.9%
Why You'll Like It: A sandbox game that allows for complete creative freedom in building ships and stations, ideal for players who love the construction aspect.
- #29 Sins of a Solar Empire®: Rebellion
77% matchVery Positive93% of 16,246 reviews2012
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 4.9 hrsMean: 16.6 hrs≥1hr: 86%
Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.
Why similar: 4X 22.1% ★, Space Sim 18.3% ★, Grand Strategy 14.2% ★, Space 12.2%, Base Building 9.6%
- #30 Gemini Wars
79% matchMostly Negative32% of 165 reviews2012
Dev: Camel 101
Windows · Mac
Median: 1.6 hrsMean: 4.0 hrs≥1hr: 94%
Take control of a fleet commander returned from exile, rise through the ranks of the United Space Federation forces and join an epic war across the stars.
Why similar: 4X 26.6% ★, Space Sim 18.8% ★, Grand Strategy 16.6% ★, Space 13.7%, Base Building 10.3%
Why You'll Like It: A real-time strategy game set in space that focuses on fleet management and tactical warfare.
- #31 X Rebirth
78% matchMixed44% of 7,305 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 35%, Space Sim 20.9% ★, Sci-fi 12.2%, Simulation 11.5%, Sandbox 8.3%
Why You'll Like It: Focuses on the simulation and trading aspects of space life, providing a dense sandbox for players to explore.
- #32 Cosmoteer: Starship Architect & Commander
73% matchVery Positive95% of 12,431 reviews2022
Dev: Walternate Realities
Windows
Median: 19.3 hrsMean: 40.4 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: Spaceships 31.5% ★, Space Sim 23.6% ★, Space 17.7%, Sci-fi 12.8%, Strategy 5.8%
- #33 Star Ruler
77% matchVery Positive83% of 340 reviews2010
Dev: Blind Mind Studios
Windows
Median: 30 minMean: 6.2 hrs≥1hr: 41%
Take command of a vast interstellar empire and safeguard your species from total extinction in a procedurally generated 3D galaxy (with the option to flatten it) from 1 System to 10,000+! Prove your species' ingenuity through a deep and intricate combat system where anything (from individual components on ships to the stars themselves)...
Why similar: 4X 40.5% ★, Space 23.8%, Strategy 13.1%, Grand Strategy 12.5% ★, Sci-fi 6.9%
- #34 SpaceBourne
75% matchMostly Positive77% of 805 reviews2020
Dev: Burak Dabak
Windows
Median: 1.9 hrsMean: 9.7 hrs≥1hr: 58%
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 36.5%, Space Sim 32.6% ★, RPG 14.4%, Simulation 12.8%, Indie 3.8%
- #35 Distant Worlds: Universe
76% matchMostly Positive75% of 1,845 reviews2014
Dev: Code ForcePub: Slitherine Ltd.
Windows
Median: 2.9 hrsMean: 23.9 hrs≥1hr: 59%
Distant Worlds is a vast, pausable real-time 4X space strategy game. Experience the full depth and detail of turn-based strategy, but with the simplicity and ease of real-time, and on the scale of a massively-multiplayer online game.
Why similar: 4X 38.3% ★, Space 19.4%, Grand Strategy 13.2% ★, Strategy 7.8%, Sci-fi 7.3%
- #36 Celestial Command
76% matchMixed63% of 687 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 31%, Space Sim 18.1% ★, Sandbox 12.7%, Simulation 9.7%, Sci-fi 8.1%
- #37 Space Rangers HD: A War Apart
73% matchVery Positive94% of 7,116 reviews2013
Dev: SNK GamesPub: Fulqrum Publishing
Windows
Median: 4.0 hrsMean: 27.5 hrs≥1hr: 89%
Space adventure, open world RPG, strategy, arcade, quest and more!
Why similar: Space 44%, RPG 12.5%, Open World 12%, Strategy 10.4%, Sci-fi 8.4%
- #38 Starcom: Nexus
73% matchVery Positive91% of 2,274 reviews2019
Dev: Wx3 Labs, LLC
Windows · Linux
Median: 3.8 hrsMean: 13.6 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 38.2%, Space Sim 23.5% ★, Sci-fi 13.6%, Open World 12.7%, RPG 9.3%
- #39 Sins of a Solar Empire: Trinity®
74% matchMostly Positive77% of 809 reviews2011
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 2.0 hrsMean: 30.9 hrs≥1hr: 59%
In Sins of a Solar Empire: Trinity, you are the leader of a civilization embroiled in a galactic war, fighting for the survival of your entire race against relentless foes.
Why similar: 4X 26.9% ★, Space Sim 20.9% ★, Moddable 15.9% ★, Space 13.5%, Base Building 10.8%
- #40 Void Destroyer
74% matchMixed60% of 351 reviews2015
Dev: Iteration 11
Windows
Median: 18 minMean: 3.0 hrs≥1hr: 30%
Combining the best of space combat and real time strategy. Victory can be tactical, a dogfight or capital ship slugging match - depending on how you decide to achieve it. Space combat on a RTS scale with space sim savagery.
Why similar: Space 35.2%, Space Sim 20% ★, Strategy 15.7%, Simulation 13.9%, Sci-fi 12.4%
- #41 Starpoint Gemini
75% matchMostly Negative31% of 150 reviews2012
Dev: Little Green Men Games
Windows
Median: 42 minMean: 5.8 hrs≥1hr: 42%
Gemini is a dangerous place with riches waiting to be claimed by the more daring and capable captain.
Why similar: Space 28.9%, Space Sim 22.7% ★, RPG 19.6%, Simulation 16.9%, Sci-fi 10.7%
- #42 X3: Terran Conflict
72% matchVery Positive85% of 2,841 reviews2008
Dev: Egosoft
Windows · Mac · Linux
Median: 1.1 hrsMean: 32.2 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 30.3%, Space Sim 19.6% ★, Sandbox 9.8%, Open World 8.3%, Sci-fi 7.6%
- #43 Starcom: Unknown Space
68% matchVery Positive93% of 4,082 reviews2024
Dev: Wx3 Labs, LLC
Windows
Median: 7.9 hrsMean: 16.2 hrs≥1hr: 82%
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 32.1% ★, Space 31.3%, Open World 16.8%, Sci-fi 9.8%, RPG 6.8%
- #44 Star Trek: Infinite
71% matchMixed42% of 3,468 reviews2023
Dev: Nimble Giant EntertainmentPub: Paradox Interactive
Windows · Mac
Median: 5.3 hrsMean: 19.2 hrs≥1hr: 79%
Star Trek: Infinite is a grand strategy experience that lets you play your own Star Trek story as the leader of one of four major factions in the galaxy. Follow the specially crafted story or blaze your own trail in the first Star Trek grand strategy game.
Why similar: 4X 26.6% ★, Grand Strategy 17.7% ★, Space Sim 15.3% ★, Space 14.2%, Sandbox 8.2%
- #45 Halcyon 6: Starbase Commander (LIGHTSPEED EDITION)
71% matchMostly Positive79% of 830 reviews2017
Dev: Massive Damage, Inc.
Windows · Mac · Linux
Median: 6.6 hrsMean: 7.6 hrs≥1hr: 88%
A retro space strategy RPG with base building, deep tactical combat, crew management and emergent storytelling. Halcyon 6: Lightspeed Edition is a massively enhanced version of the Award Winning indie strategy RPG, Halcyon 6.
Why similar: 4X 30.3% ★, Tactical RPG 14.2%, Strategy RPG 12.7%, Space 12.4%, Base Building 11.9%
- #46 Galactic Civilizations® II: Ultimate Edition
71% matchMostly Positive77% of 1,697 reviews2011
Dev: Stardock Entertainment
Windows
Median: 30 minMean: 44.0 hrs≥1hr: 39%
Get the complete GalCiv II saga including Galactic Civilizations II: Dread Lords, the expansion pack Dark Avatar, and the newest expansion pack Twilight of the Arnor!
Why similar: 4X 37.2% ★, Grand Strategy 23.8% ★, Base Building 15.7%, Strategy 7%, Moddable 6.2% ★
- #47 Space Commander: War and Trade
69% matchMixed67% of 688 reviews2020
Dev: Home Net Games
Windows · Mac · Linux
Median: 1.2 hrsMean: 9.2 hrs≥1hr: 57%
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 32.9% ★, Flight 19.3%, Base Building 18.7%, Space 13.5%, RPG 9.6%
- #48 Star Wolves
70% matchVery Positive84% of 448 reviews2010
Dev: X-Bow SoftwarePub: Fulqrum Publishing
Windows
Median: 18 minMean: 7.5 hrs≥1hr: 38%
Star wolves is a 3D space RPG with deep strategy and tactical elements. The game thrusts players into a world of freelance space hunters in the XXI-XXII century A.D. during a time of political crisis for the all-powerful Empire and the three mega-corporations that control all the known worlds.
Why similar: Space 48.7%, RPG 22.3%, Strategy 19.3%, Sci-fi 9.6%
- #49 Solargene
65% matchMostly Positive76% of 819 reviews2026
Dev: Alexander Semenov
Windows
Median: 3.7 hrsMean: 34.8 hrs≥1hr: 71%
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 21.3% ★, 4X 17.3% ★, Moddable 12.2% ★, Base Building 12%, Space 11%
- #50 Darkstar One
70% matchVery Positive83% of 609 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 33% ★, Space 31.9%, Sci-fi 12.3%, Open World 11.5%, Simulation 5.3%
- #51 Dust Fleet
67% matchMostly Positive76% of 209 reviews2023
Dev: Orbiting DiscoPub: indie.io
Windows
Assume command of a battle fleet and deploy immediately to the Dust Zone, commander. Our main food supply station has gone dark and the United Earth Nations (UEN) needs to know why in this 4X RTS space sim. Manage your ships, control space stations, and watch your back.
Why similar: 4X 30% ★, Space Sim 22.4% ★, Space 17.4%, Sci-fi 9.2%, Strategy 6.7%
- #52 X2: The Threat
70% matchVery Positive83% of 518 reviews2006
Dev: Egosoft
Windows
Median: 24 minMean: 7.4 hrs≥1hr: 35%
X²: The Threat is of a new generation of space simulator games, you play the role of Julian Gardna who continues the story set by X: Beyond The Frontier. The updated graphics engine gives the universe a fresher feel with newly designed ships and stations adding to the complexity of the universe.
Why similar: Space 28.8%, Space Sim 21% ★, Open World 9.7%, Sci-fi 8.9%, Sandbox 8.2%
- #53 NEBULOUS: Fleet Command
66% matchVery Positive81% of 3,819 reviews2022
Dev: Eridanus IndustriesPub: Hooded Horse
Windows
Median: 4.9 hrsMean: 30.4 hrs≥1hr: 77%
Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.
Why similar: Grand Strategy 30.7% ★, Strategy RPG 19.3%, Open World 15.8%, Sandbox 14.5%, Strategy 9.3%
- #54 Age of Wonders 4
65% matchVery Positive81% of 21,784 reviews2023
Dev: Triumph StudiosPub: Paradox Interactive
Windows
Median: 22.4 hrsMean: 58.8 hrs≥1hr: 93%
Rule a fantasy realm of your own design! Explore new magical realms in Age of Wonders’ signature blend of 4X strategy and turn-based tactical combat. Control a faction that grows and changes as you expand your empire with each turn!
Why similar: 4X 28.7% ★, Grand Strategy 16.5% ★, Moddable 15% ★, Tactical RPG 11.5%, Strategy RPG 11.3%
- #55 Lords of the Black Sun
72% matchMostly Negative20% of 395 reviews2014
Dev: Arkavi StudiosPub: Iceberg Interactive
Windows
Median: 3.6 hrsMean: 4.6 hrs≥1hr: 90%
Take command of one race to join the struggle for supremacy in the galaxy. As the leader of your empire you are tasked with exploring the stars, colonizing new worlds, managing your empire and conquering whoever dares to oppose you.
Why similar: 4X 49.3% ★, Space 26.5%, Strategy 14.9%, Sci-fi 6.5%, Indie 2.8%
- #56 Empyrion - Galactic Survival
66% matchMostly Positive79% of 34,087 reviews2020
Dev: Eleon Game Studios
Windows
Median: 6.3 hrsMean: 76.7 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 28.2% ★, Space 21.3%, Open World 14.4%, Sandbox 11.5%, Sci-fi 9.2%
- #57 Stars in Shadow
68% matchMostly Positive79% of 816 reviews2017
Dev: Ashdar GamesPub: Iceberg Interactive
Windows
Median: 2.5 hrsMean: 14.5 hrs≥1hr: 66%
Stars in Shadow is a turn-based 4X strategy game and a vivid tribute to the genre classics. Compete with alien factions to explore and colonize nearby starsystems, build fleets to defend against rivals, negotiate or conquer them. Win by unifying the galaxy, through diplomacy or force.
Why similar: 4X 56% ★, Space 20.1%, Strategy 12.1%, Sci-fi 8.7%, Indie 3.1%
- #58 Star Nomad 2
69% matchMostly Positive72% of 158 reviews2015
Dev: Huy Phan
Windows · Mac
A space trader & combat sim meets squad-RPG, large scale conquest, choice driven gameplay with fluid & punchy tactical real-time combat set in a dynamic open-world sandbox.
Why similar: Space 25.3%, Space Sim 14.1% ★, Open World 11.3%, RPG 11%, Sandbox 10.1%
- #59 The Last Federation
69% matchMostly Positive75% of 502 reviews2014
Dev: Arcen Games
Windows · Mac · Linux
Median: 3.5 hrsMean: 5.1 hrs≥1hr: 90%
From the creators of AI War: Fleet Command comes an all-new grand strategy title with turn-based tactical combat, set in a deep simulation of an entire solar system and its billions of inhabitants. You are the last of a murdered race, determined to unify or destroy the 8 others.
Why similar: 4X 31.1% ★, Space 25.3%, Grand Strategy 13.5% ★, Strategy 12.4%, Sci-fi 7.5%