- #1 Sins of a Solar Empire II
97% matchVery Positive84% of 8,792 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 32.8 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 29.4% ★, RTS 17.6%, Space 16.3%, Co-op 7.4%, Base Building 7.2%
Why You'll Like It: This is the direct, modern evolution of the seed game, offering refined mechanics and updated graphics while maintaining the core RT4X experience.
- #2 Homeworld Remastered Collection
96% matchVery Positive88% of 14,195 reviews2015
Dev: Gearbox SoftwarePub: Gearbox Publishing
Windows · Mac
Median: 4.7 hrsMean: 34.8 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: RTS 33.8%, Space 30.3%, Sci-fi 12.7%, Strategy 10%, Multiplayer 6.2%
Why You'll Like It: It provides the gold standard for 3D tactical space combat with a focus on fleet management and cinematic scale.
- #3 Ashes of the Singularity: Escalation
96% matchMostly Positive74% of 5,000 reviews2016
Dev: Stardock Entertainment
Windows
Median: 3.2 hrsMean: 7.3 hrs≥1hr: 89%
A massive-scale real-time strategy game where you command entire armies on a dynamic battlefield. Conquer multiple worlds across several single-player campaigns; or play with your friends in multiplayer combat.
Why similar: RTS 22.8%, Base Building 16.9%, Military 15.9%, Online Co-Op 12.4%, Co-op 8%
Why You'll Like It: Developed by the same engine creators, it excels at massive-scale real-time strategy with thousands of units on screen.
- #4 STAR WARS™ Empire at War - Gold Pack
95% matchOverwhelmingly Positive98% of 43,256 reviews2010
Dev: PetroglyphPub: LucasArts
Windows
Median: 3.9 hrsMean: 48.3 hrs≥1hr: 72%
Command or corrupt an entire galaxy in the definitive Star Wars strategy collection. It is a time of galactic civil war. Will you take up the reins of the Rebellion, assume control of the Empire, or rule the Star Wars Underworld?
Why similar: RTS 29.2%, Space 16.5%, Grand Strategy 11.4%, Strategy 10.6%, Sci-fi 9.6%
Why You'll Like It: It mirrors the seed game's structure by combining a galactic-scale strategic layer with real-time tactical space and ground battles.
- #5 Stellaris
94% matchVery Positive86% of 197,307 reviews2016
Dev: Paradox Development StudioPub: Paradox Interactive
Windows · Mac · Linux
Median: 19.4 hrsMean: 145.5 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 21.6% ★, Grand Strategy 19%, Space 11.5%, Diplomacy 11.4% ★, Sandbox 7.3%
Why You'll Like It: While more focused on grand strategy, it offers the deep space exploration and empire-building depth that fans of the 4X elements in Sins will appreciate.
- #6 Supreme Commander: Forged Alliance
94% matchOverwhelmingly Positive97% of 14,402 reviews2011
Dev: Gas Powered GamesPub: Square Enix
Windows
Median: 7.1 hrsMean: 50.0 hrs≥1hr: 75%
The last days of man are at hand.. Two years after the Infinite War the once great warring nations now lie in ruins, and humanity’s hope for a brighter future is nothing but a bitter memory. A new, seemingly unstoppable enemy, supported by the zealots of The Order, now seeks to eradicate mankind: UEF, Aeon Loyalist, and Cybran alike.
Why similar: RTS 32.7%, Grand Strategy 17.8%, Base Building 10.6%, Strategy 9.8%, Sci-fi 9.1%
Why You'll Like It: This title is the definitive experience for players who enjoy the massive scale and economy-focused RTS gameplay found in Sins.
- #7 NEBULOUS: Fleet Command
93% matchVery Positive81% of 4,440 reviews2022
Dev: Eridanus IndustriesPub: Hooded Horse
Windows
Median: 4.9 hrsMean: 31.7 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: Diplomacy 24.4% ★, Grand Strategy 19.2%, RTS 13.3%, Military 13.2%, Sandbox 7.8%
Why You'll Like It: It offers a highly realistic and tactical approach to space fleet combat, focusing on sensor management and long-range engagement.
- #8 Dune: Spice Wars
92% matchMostly Positive79% of 13,585 reviews2023
Dev: Shiro GamesPub: Funcom
Windows
Median: 6.8 hrsMean: 16.6 hrs≥1hr: 85%
A 4X real-time strategy game from the developers of the critically acclaimed Northgard. Set in Frank Herbert’s groundbreaking Dune universe, you must lead your faction and battle for control and dominance over the harsh desert planet of Arrakis.
Why similar: Diplomacy 18.7% ★, 4X 17.7% ★, Grand Strategy 14%, RTS 10.5%, Management 9.3%
Why You'll Like It: This game successfully bridges the gap between 4X strategy and real-time gameplay, mirroring the pacing and management style of the seed game.
- #9 X4: Foundations
91% matchMostly Positive80% of 30,300 reviews2018
Dev: Egosoft
Windows · Linux
Median: 4.9 hrsMean: 95.4 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: 4X 22.1% ★, Space Sim 17.2%, Grand Strategy 15.1%, Space 10.2%, Sandbox 7.9%
Why You'll Like It: It provides a deep space economy and fleet management simulation that allows players to build a massive empire from the cockpit or the map view.
- #10 Terra Invicta
89% matchVery Positive80% of 9,948 reviews2026
Dev: Pavonis InteractivePub: Hooded Horse
Windows
Median: 9.2 hrsMean: 53.5 hrs≥1hr: 79%
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.
Why similar: Diplomacy 22.2% ★, 4X 20.9% ★, Grand Strategy 17.3%, Military 10.6%, Management 7.2%
Why You'll Like It: A complex grand strategy game that focuses on the geopolitical and space-faring aspects of defending Earth, appealing to fans of deep systems.
- #11 AI War 2
91% matchVery Positive87% of 1,563 reviews2019
Dev: Arcen Games
Windows · Mac · Linux
Median: 3.0 hrsMean: 5.7 hrs≥1hr: 83%
The most devious and acclaimed artificial intelligence in strategy gaming is better than ever. A grand strategy/RTS hybrid that reverses many conventions of both genres. Take territory without attracting attention, build your empire with care, and adapt to an ever-evolving galactic battleground.
Why similar: 4X 23.7% ★, Grand Strategy 17.5%, RTS 9.7%, Military 8.5%, Space 6%
Why You'll Like It: It provides a unique, asymmetric space strategy experience where you must manage a massive empire against an overwhelming AI opponent.
- #12 Distant Worlds 2
90% matchMostly Positive71% of 3,566 reviews2022
Dev: CodeForcePub: Slitherine Ltd.
Windows
Median: 8.5 hrsMean: 41.5 hrs≥1hr: 74%
Distant Worlds 2 is a vast, pausable real-time 4X space strategy game.
Why similar: 4X 36% ★, Grand Strategy 25.5%, Space 12%, Strategy 8%, Sci-fi 8%
Why You'll Like It: It offers an incredibly deep, living galaxy simulation that captures the scale of empire management found in the seed game.
- #13 Galactic Civilizations IV
88% matchMostly Positive72% of 2,617 reviews2023
Dev: Stardock Entertainment
Windows
Median: 5.2 hrsMean: 23.9 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 19% ★, Diplomacy 18.4% ★, Grand Strategy 16.2%, Space 8.2%, Sandbox 6.6%
Why You'll Like It: A staple of the space 4X genre that offers deep customization and empire management for those who enjoy the strategic side of space conquest.
- #14 ENDLESS Space™ 2
89% matchVery Positive83% of 23,109 reviews2017
Dev: AMPLITUDE Studios
Windows · Mac
Median: 6.2 hrsMean: 26.3 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 62.6%, 4X 13.3% ★, Space 11%, Grand Strategy 4.5%, Sci-fi 3.9%
Why You'll Like It: A polished space 4X game that provides deep faction variety and empire management, ideal for players who enjoy the strategic depth of the seed game.
- #15 Star Ruler 2
87% matchVery Positive82% of 721 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 41.8% ★, RTS 20.9%, Space 18.1%, Sci-fi 10.2%, Strategy 9%
Why You'll Like It: It offers a unique take on 4X space strategy with a focus on supply chains and large-scale fleet combat.
- #16 Executive Assault 2
84% matchVery Positive83% of 1,767 reviews2023
Dev: Hesketh Studios Ltd
Windows · Mac
Median: 3.7 hrsMean: 8.1 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 25.7%, RTS 22.8%, Base Building 14.5%, Space 11.4%, Co-op 6.7%
Why You'll Like It: A unique hybrid that allows you to manage your space empire from a top-down RTS perspective or jump into a ship for first-person combat.
- #17 Starpoint Gemini Warlords
86% matchMostly Positive73% of 3,598 reviews2017
Dev: Little Green Men Games
Windows
Median: 4.1 hrsMean: 10.8 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: 4X 22.2% ★, Space Sim 18.4%, Grand Strategy 14.3%, Space 12.3%, Base Building 9.5%
Why You'll Like It: It combines RPG elements with 4X strategy, allowing players to command fleets and manage territory in a space setting.
- #18 Nexus - The Jupiter Incident
85% matchVery Positive86% of 1,090 reviews2007
Dev: Mithis GamesPub: THQ Nordic Mobile
Windows
Median: 1.9 hrsMean: 12.0 hrs≥1hr: 66%
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 31.6%, RTS 25.4%, Sci-fi 16%, Strategy 13.5%, Simulation 6.9%
Why You'll Like It: A tactical space combat game that emphasizes ship customization and fleet maneuvering over base building.
- #19 Distant Worlds: Universe
84% matchMostly Positive75% of 1,856 reviews2014
Dev: Code ForcePub: Slitherine Ltd.
Windows
Median: 3.0 hrsMean: 24.5 hrs≥1hr: 60%
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 39.7% ★, Grand Strategy 17%, Space 14.6%, RTS 7.2%, Sci-fi 6.8%
Why You'll Like It: The predecessor to Distant Worlds 2, it remains a massive, complex 4X space strategy game with unparalleled scale.
- #20 Star Trek: Infinite
82% matchMixed42% of 3,529 reviews2023
Dev: Nimble Giant EntertainmentPub: Paradox Interactive
Windows · Mac
Median: 5.3 hrsMean: 18.9 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 18.2% ★, Diplomacy 16.5% ★, Grand Strategy 15.2%, Space Sim 9.6%, RTS 8.7%
Why You'll Like It: Built on the Stellaris engine, it provides a focused grand strategy experience for fans of the Star Trek universe.
- #21 Gratuitous Space Battles
83% matchMixed70% of 891 reviews2009
Dev: Positech Games
Windows · Mac · Linux
Median: 2.8 hrsMean: 5.1 hrs≥1hr: 81%
The first ever auto-battler game, from way back in 2009Who needs backstory? Who needs resource-gathering? Diplomacy is so last year. Gratuitous Space Battles cuts right to the chase of sci-fi strategy games, and deals with large, completely unjustified space battles between huge opposing space fleets.
Why similar: Space 23.9%, Sandbox 18.9%, RTS 15.6%, Sci-fi 14.9%, Strategy 11.9%
Why You'll Like It: It focuses entirely on the fleet design and tactical deployment aspects of space warfare, perfect for players who love the combat side of Sins.
- #22 Star Ruler
82% matchVery Positive83% of 342 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 37.7% ★, Space 16.2%, RTS 15.1%, Grand Strategy 14.5%, Strategy 10.1%
Why You'll Like It: A grand-scale space strategy game that allows for massive ship design and galaxy-wide conquest.
- #23 Homeworld: Deserts of Kharak
81% matchMostly Positive79% of 8,941 reviews2016
Dev: Blackbird InteractivePub: Gearbox Publishing
Windows · Mac
Median: 5.0 hrsMean: 9.7 hrs≥1hr: 87%
A ground-based RTS prequel to the classic Homeworld games. Assemble your fleet and lead them to victory on the shifting sands of Kharak in this compelling strategy game for PC from Blackbird Interactive.
Why similar: RTS 45.8%, Sci-fi 16.5%, Strategy 14.6%, Space 11.7%, Multiplayer 10.2%
Why You'll Like It: While set on a planet, it retains the core tactical RTS DNA and fleet-based movement that makes the Homeworld series similar to Sins.
- #24 Master of Orion
81% matchMostly Positive77% of 8,196 reviews2016
Dev: NGD StudiosPub: Wargaming Labs
Windows · Mac · Linux
Median: 9.2 hrsMean: 101.3 hrs≥1hr: 92%
The ascendant spacefaring 4X strategy game returns! A new chapter in the epic Master of Orion saga is poised to once again capture the imaginations of millions of gamers.
Why similar: 4X 52.5% ★, Space 14.7%, Strategy 12%, Grand Strategy 7.5%, Sci-fi 6.4%
Why You'll Like It: A classic 4X experience that focuses on the core pillars of space exploration, research, and diplomacy.
- #25 Void Destroyer 2
79% matchVery Positive80% of 675 reviews2020
Dev: Iteration 11
Windows
Median: 2.8 hrsMean: 15.3 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 25.6% ★, Space Sim 22.5%, RTS 13%, Space 10.3%, Sandbox 10%
Why You'll Like It: It blends space simulation with RTS elements, allowing players to command fleets while participating in the action.
- #26 Homeworld 3
78% matchMixed41% of 8,761 reviews2024
Dev: Blackbird InteractivePub: Gearbox Publishing
Windows
Median: 4.7 hrsMean: 65.8 hrs≥1hr: 73%
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.
Why similar: RTS 27.8%, Space 19.8%, Co-op 11%, Sci-fi 10.2%, Multiplayer 8.1%
Why You'll Like It: The latest entry in the series, offering modern graphics and refined tactical space combat for fans of the genre.
- #27 X3: Reunion
80% matchMostly Positive72% of 743 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 31.2%, Space 27.4%, Sandbox 13%, Sci-fi 10%, Simulation 8%
Why You'll Like It: A classic space simulation that focuses on economy and fleet management, perfect for those who enjoy the logistical side of space strategy.
- #28 Galactic Civilizations III
78% matchMostly Positive77% of 10,403 reviews2015
Dev: Stardock Entertainment
Windows
Median: 4.6 hrsMean: 17.6 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 32.2% ★, Grand Strategy 24.8%, Sandbox 11.1%, Space 10.9%, Sci-fi 8.5%
Why You'll Like It: A highly customizable 4X strategy game that allows for deep empire building and complex diplomatic interactions.
- #29 ENDLESS Space™ - Definitive Edition
77% matchVery Positive81% of 9,610 reviews2012
Dev: AMPLITUDE Studios
Windows · Mac
Median: 4.6 hrsMean: 13.6 hrs≥1hr: 87%
ENDLESS Space™ is a turn-based 4X strategy game, covering the space colonization age in the ENDLESS Universe™, where you can control every aspect of your civilization as you strive for galactic domination.
Why similar: 4X 41.1% ★, Space 16.4%, Strategy 12%, Diplomacy 8.4% ★, Sci-fi 8%
- #30 StarDrive
79% matchMixed45% of 1,489 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 47.9% ★, Space 17.4%, RTS 16.5%, Strategy 9.8%, Sci-fi 7.9%
Why You'll Like It: It features real-time space combat and ship design, appealing to players who want more direct control over their fleet's capabilities.
- #31 Sins of a Solar Empire: Trinity®
77% matchMostly Positive78% of 818 reviews2011
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 2.0 hrsMean: 30.7 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 19.8% ★, Diplomacy 19.5% ★, Space Sim 14.1%, RTS 11%, Military 9.9%
- #32 Planetary Annihilation: TITANS
75% matchVery Positive84% of 14,720 reviews2015
Dev: Planetary Annihilation Inc
Windows · Mac · Linux
Median: 4.0 hrsMean: 17.8 hrs≥1hr: 73%
Wage war across entire solar systems with massive armies at your command. Annihilate enemy forces with world-shattering TITAN-class units, and demolish planets with massive super weapons!
Why similar: RTS 21.8%, Grand Strategy 17.7%, Base Building 11.9%, Online Co-Op 9.7%, Space 8.9%
- #33 Galactic Civilizations® II: Ultimate Edition
76% matchMostly Positive77% of 1,712 reviews2011
Dev: Stardock Entertainment
Windows
Median: 30 minMean: 45.9 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 32.2% ★, Grand Strategy 25.8%, Base Building 14.2%, Diplomacy 8.6% ★, Strategy 5%
- #34 Avorion
73% matchVery Positive90% of 14,588 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.9 hrsMean: 99.6 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 31.7%, Space 16.1%, Sandbox 14.9%, Management 10.5%, Sci-fi 9.4%
- #35 Age of Wonders III
75% matchMostly Positive77% of 13,326 reviews2014
Dev: Triumph StudiosPub: Paradox Interactive
Windows · Mac · Linux
Median: 3.7 hrsMean: 18.7 hrs≥1hr: 76%
Age of Wonders III is the long anticipated sequel to the award-winning strategy series. Delivering a unique mix of Empire Building, Role Playing and Warfare, Age of Wonders III offers the ultimate in turn-based fantasy strategy for veterans of the series and new players alike!
Why similar: 4X 54.5% ★, Strategy 23.6%, Grand Strategy 8.1%, Multiplayer 7.9%, Co-op 4.6%
- #36 Sid Meier's Civilization®: Beyond Earth™
76% matchMixed61% of 23,177 reviews2014
Dev: Firaxis GamesPub: 2K
Windows · Mac · Linux
Median: 7.9 hrsMean: 29.6 hrs≥1hr: 92%
Sid Meier’s Civilization: Beyond Earth is a new science-fiction-themed entry into the award winning Civilization series. As part of an expedition sent to find a home beyond Earth, lead your people into a new frontier, explore and colonize an alien planet and create a new civilization in space.
Why similar: 4X 34.4% ★, Grand Strategy 15.5%, Space 14.8%, Sci-fi 12.3%, Strategy 10.2%
- #37 Skillshot City
74% matchVery Positive85% of 3,579 reviews2017
Dev: Nik Nak Studios
Windows · Linux
Median: 3.0 hrsMean: 7.0 hrs≥1hr: 75%
Skillshot City is a chaotic battle royale with roguelite skill builds and infinite revives. Loot, shoot, cast and drive through a GTA-style city to level up wild skills and create clever combos on the fly. If you die, keep fighting outside the circle and try to revive before the final showdown!
Why similar: Online Co-Op 40.9%, Co-op 34.4%, Multiplayer 24.7%
- #38 AI War: Fleet Command
74% matchVery Positive82% of 1,612 reviews2009
Dev: Arcen Games
Windows · Mac · Linux
Median: 2.7 hrsMean: 5.7 hrs≥1hr: 87%
"You are outgunned. You are massively outnumbered. You must win." These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...
Why similar: 4X 20.4% ★, RTS 18.4%, Strategy 16%, Grand Strategy 16%, Space 12%
- #39 Satellite Reign
73% matchMostly Positive71% of 5,372 reviews2015
Dev: 5 Lives Studios
Windows · Mac · Linux
Median: 4.5 hrsMean: 19.3 hrs≥1hr: 83%
Satellite Reign is a real-time, class-based strategy game, set in an open-world cyberpunk city. You command a group of 4 agents through rain-soaked, neon-lit streets, where the law is the will of mega-corporations.
Why similar: Sci-fi 24.7%, Strategy 23.1%, Co-op 21.6%, RTS 19.8%, Multiplayer 8.3%
- #40 Supreme Commander 2
73% matchVery Positive88% of 12,990 reviews2010
Dev: Gas Powered GamesPub: Square Enix
Windows
Median: 7.7 hrsMean: 31.4 hrs≥1hr: 76%
Includes 47 Steam achievements, leaderboards, and stats!
Why similar: RTS 29.9%, Grand Strategy 14.9%, Base Building 12.5%, Strategy 10.4%, Sci-fi 8.1%
- #41 Murderous Pursuits
72% matchMixed64% of 2,813 reviews2018
Dev: Blazing Griffin
Windows
Median: 3.1 hrsMean: 5.3 hrs≥1hr: 86%
Murderous Pursuits is a kill-or-be-killed Victorian stealth-em-up for 1-8 players in which you must hunt and kill your quarry before your hunters do the same to you, all while avoiding witnesses.
Why similar: Multiplayer 35.3%, Simulation 28.4%, Strategy 26.8%, Co-op 9.5%
- #42 Rebel Galaxy
71% matchVery Positive85% of 8,397 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 38.8%, Space Sim 28.5%, Sci-fi 14.4%, Sandbox 7.8%, Simulation 4.2%
- #43 Elite Dangerous
70% matchMostly Positive77% of 107,797 reviews2015
Dev: Frontier Developments
Windows
Median: 18.3 hrsMean: 149.0 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 38.6%, Space 19.5%, Sci-fi 9.1%, Online Co-Op 6.5%, Multiplayer 6.5%
- #44 Solar Wave
65% matchMostly Positive75% of 84 reviews2026
Dev: SavGus Studio
Windows
A large-scale 4X strategy game with indirect control and a focus on simulating a space empire. Capture systems, develop your economy and logistics, call up hundreds of powerful fleets and watch them incinerate enemies of the Solar Empire.
Why similar: 4X 27.3% ★, Grand Strategy 22.6%, RTS 14.5%, Space 11.9%, Management 7.9%
- #45 ERA ONE
65% matchVery Positive87% of 1,615 reviews2025
Dev: Team Complex LTD
Windows
Median: 4.4 hrsMean: 16.4 hrs≥1hr: 68%
Start with your Command Center and expand it into a colossal modular flagship, module by module. Design custom warships from the ground up, grow a thriving civilization, and command powerful fleets across the Solar System in tactical real-time battles.
Why similar: RTS 19.7%, Base Building 14.8%, Space 13.8%, Sandbox 11.7%, Online Co-Op 10.4%
- #46 Lord of Rigel
67% matchMixed69% of 124 reviews2024
Dev: Rhombus Studios
Windows
Lord of Rigel is a turn-based 4X space strategy game inspired by the classics. In a galaxy divided by two elder races, will you unite with other species or forge your own path? Navigate galactic politics and defeat threats using espionage, research, and military force. How will you shape the galaxy?
Why similar: 4X 17% ★, Diplomacy 16.6% ★, Grand Strategy 14%, Space Sim 11.2%, Military 10%
- #47 Cosmoteer: Starship Architect & Commander
66% matchVery Positive94% of 12,916 reviews2022
Dev: Walternate Realities
Windows
Median: 19.3 hrsMean: 41.3 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 27.2%, Space 16.3%, Sci-fi 14.5%, Online Co-Op 13.7%, Multiplayer 8.5%
- #48 Offworld Trading Company
69% matchMostly Positive77% of 5,719 reviews2016
Dev: Mohawk GamesPub: Stardock Entertainment
Windows · Mac
Median: 3.6 hrsMean: 35.3 hrs≥1hr: 89%
Mars has been colonized, and Earth's corporate titans fight to dominate this new market. Competition is fierce in this fast-paced economic RTS from Civilization IV Lead Designer, Soren Johnson.
Why similar: Base Building 14%, Management 12.9%, Space 12.6%, Online Co-Op 12.6%, Sci-fi 11.3%
- #49 Rebel Inc: Escalation
67% matchVery Positive82% of 7,594 reviews2021
Dev: Ndemic CreationsPub: Hooded Horse
Windows · Mac
Median: 3.7 hrsMean: 13.1 hrs≥1hr: 86%
A unique and deeply engaging political/military strategic simulation from the creator of Plague Inc. Balance competing civilian and military priorities and deal with a deadly insurgency in order to stabilise a war-torn country.
Why similar: Diplomacy 19.8% ★, 4X 18.4% ★, Grand Strategy 14.9%, Military 9.4%, RTS 8.3%
- #50 X Rebirth
71% matchMixed44% of 7,317 reviews2013
Dev: Egosoft
Windows · Mac · Linux
Median: 3.3 hrsMean: 19.0 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 32.8%, Space Sim 24.7%, Sci-fi 14.1%, Simulation 12.9%, Sandbox 10.8%
- #51 Deponia: The Complete Journey
69% matchVery Positive84% of 6,866 reviews2014
Dev: Daedalic Entertainment
Windows · Mac · Linux
Median: 3.7 hrsMean: 15.2 hrs≥1hr: 90%
Junk, junk and even more junk. Life on the trash-planet Deponia is anything but a walk in the park. No surprise that Rufus had enough of that and hatches one ludicrous plan after the other to escape this bleak place.
Why similar: Sci-fi 58.5%, Singleplayer 41.5%
- #52 Evolvation
70% matchMixed68% of 951 reviews2017
Dev: Eric RutsPub: HyperReuts
Windows · Linux
Median: 3.4 hrsMean: 10.8 hrs≥1hr: 92%
Evolvation is a casual multiplayer and fast-paced and class based space flying shooter developed by a two-man-army (Eric and Jacob) from Amsterdam. Classes are: Highspeed, Fighter, Stealth, Support and Tank. Each class has its own special ability which provides a dynamic gameplay.
Why similar: Space 45.3%, Simulation 26.2%, Multiplayer 16.9%, Sci-fi 11.6%
- #53 Age of Wonders: Planetfall
67% matchMostly Positive79% of 6,729 reviews2019
Dev: Triumph StudiosPub: Paradox Interactive
Windows · Mac
Median: 3.9 hrsMean: 16.0 hrs≥1hr: 85%
Age of Wonders: Planetfall is the new strategy game from Triumph Studios, creators of the critically acclaimed Age of Wonders series, bringing all the exciting tactical turn-based combat and in-depth empire building of its predecessors to space in an all-new, sci-fi setting.
Why similar: 4X 44.7% ★, Management 13.1%, Space 12.1%, Sci-fi 11.2%, Strategy 10.5%
- #54 Space Empires V
71% matchMostly Positive73% of 480 reviews2006
Dev: Malfador MachinationsPub: Strategy First
Windows
Median: 36 minMean: 15.1 hrs≥1hr: 45%
Space Empires V is the latest edition in the Space Empires series. This new chapter completely updates the UI and takes the player into a real-time rendered 3D universe. Watch space battles played out in glorious detail and realistic effects. Expand, Explore, Exploit, and Exterminate in a huge living breathing galaxy.
Why similar: 4X 57.8% ★, Space 16.9%, Strategy 14.3%, Sci-fi 9.7%, Singleplayer 1.3%
- #55 Star Traders: 4X Empires
70% matchMixed63% of 82 reviews2014
Dev: Trese Brothers
Windows · Mac · Linux
Median: 1.6 hrsMean: 2.8 hrs≥1hr: 94%
Take command of humanity’s last survivors and rebuild an empire in the stars. In this immersive turn-based strategy game, you will have to fight to protect your people, control rival factions, and unlock lost technology.
Why similar: Diplomacy 25% ★, 4X 24.1% ★, Grand Strategy 16.2%, Military 8.6%, Space 7.4%
- #56 Galactic Ruler
68% matchMixed49% of 121 reviews2022
Dev: BattleGoat Studios
Windows
Median: 3.5 hrsMean: 7.0 hrs≥1hr: 97%
Galactic Ruler offers real time strategy game play at both planetary level and in space! Lead your faction in diplomacy or conquest across a procedurally generated galactic map where any system might hold hostile enemies or resource riches. Develop advanced technologies to rule the galaxy!
Why similar: 4X 21.7% ★, Grand Strategy 16.8%, Space Sim 16.1%, RTS 10.3%, Co-op 9.6%
- #57 X3: Terran Conflict
68% matchVery Positive86% of 2,875 reviews2008
Dev: Egosoft
Windows · Mac · Linux
Median: 1.1 hrsMean: 31.9 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 29.9%, Space Sim 24.2%, Sandbox 13.5%, Sci-fi 9.3%, Simulation 8.3%
- #58 Orwell: Keeping an Eye On You
66% matchVery Positive90% of 15,585 reviews2016
Dev: Osmotic StudiosPub: Daedalic Entertainment
Windows · Mac · Linux
Median: 3.2 hrsMean: 8.5 hrs≥1hr: 86%
Big Brother has arrived - and it’s you. Investigate the lives of citizens to find those responsible for a series of terror attacks. Information from the internet, personal communications and private files are all accessible to you. But, be warned, the information you supply will have consequences.
Why similar: Simulation 97.4%, Singleplayer 2.6%