- #1 Sins of a Solar Empire II
97% 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 29.6% ★, RTS 17.3%, Space 15.9%, Co-op 7.7%, 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 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: RTS 33.5%, Space 30%, Sci-fi 12.7%, Strategy 10.2%, Multiplayer 6.4%
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 4,922 reviews2016
Dev: Stardock Entertainment
Windows
Median: 3.2 hrsMean: 7.2 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 22.3%, Base Building 17%, Military 15.6%, Online Co-Op 12.8%, 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 41,807 reviews2010
Dev: PetroglyphPub: LucasArts
Windows
Median: 3.8 hrsMean: 46.9 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 28.8%, Space 16.4%, Grand Strategy 11% ★, Strategy 11%, 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 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 21.6% ★, Grand Strategy 18.9% ★, Diplomacy 11.4% ★, Space 11.3%, Sandbox 7.4%
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 14,047 reviews2011
Dev: Gas Powered GamesPub: Square Enix
Windows
Median: 6.8 hrsMean: 48.5 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 32.2%, Grand Strategy 17.6% ★, Base Building 10.6%, Strategy 10.1%, Sci-fi 9%
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 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: Diplomacy 24.5% ★, Grand Strategy 19.6% ★, Military 13.3%, RTS 12.6%, Sandbox 7.7%
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 13,257 reviews2023
Dev: Shiro GamesPub: Funcom
Windows
Median: 7.0 hrsMean: 16.2 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 17.6% ★, Grand Strategy 13.8% ★, RTS 10.3%, Management 9.8%
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 Terra Invicta
89% matchVery Positive81% of 9,023 reviews2026
Dev: Pavonis InteractivePub: Hooded Horse
Windows
Median: 9.5 hrsMean: 51.4 hrs≥1hr: 80%
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 21.9% ★, 4X 20.3% ★, Grand Strategy 16.6% ★, Military 10.2%, RTS 9.1%
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.
- #10 AI War 2
91% matchVery Positive88% of 1,533 reviews2019
Dev: Arcen Games
Windows · Mac · Linux
Median: 3.0 hrsMean: 5.6 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 23.6% ★, Grand Strategy 17.3% ★, RTS 9.5%, Military 8.4%, Co-op 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.
- #11 Distant Worlds 2
91% 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 25.3% ★, Space 11.9%, Strategy 8.2%, Sci-fi 7.9%
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.
- #12 X4: Foundations
90% 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 25.3% ★, 4X 19.6% ★, Space 12.4%, Sandbox 11.9%, Management 7.6%
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.
- #13 ENDLESS™ Space 2
89% 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 63.3%, 4X 13.1% ★, Space 10.7%, Grand Strategy 4.4% ★, Sci-fi 3.8%
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.
- #14 Galactic Civilizations IV
87% 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 18.8% ★, Diplomacy 18.4% ★, Grand Strategy 16% ★, Space 8.1%, 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.
- #15 Star Ruler 2
88% 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 42% ★, RTS 20.7%, Space 18%, Sci-fi 10.1%, Strategy 9.2%
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
85% matchVery Positive83% of 1,726 reviews2023
Dev: Hesketh Studios Ltd
Windows · Mac
Median: 4.0 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 25.6% ★, RTS 22.4%, Base Building 14.6%, Space 11.4%, Co-op 6.9%
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 3,569 reviews2017
Dev: Little Green Men Games
Windows
Median: 4.1 hrsMean: 11.0 hrs≥1hr: 88%
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 22.1% ★, Space Sim 18.3% ★, Grand Strategy 14.2% ★, Space 12.2%, Base Building 9.6%
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
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 31.4%, RTS 25.1%, Sci-fi 15.9%, Strategy 13.9%, Simulation 7.1%
Why You'll Like It: A tactical space combat game that emphasizes ship customization and fleet maneuvering over base building.
- #19 Star Ruler
84% 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 37.8% ★, Space 16.1%, RTS 14.9%, Grand Strategy 14.5% ★, Strategy 10.4%
Why You'll Like It: A grand-scale space strategy game that allows for massive ship design and galaxy-wide conquest.
- #20 Distant Worlds: Universe
83% 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 39.5% ★, Grand Strategy 17% ★, Space 14.6%, RTS 7.1%, Strategy 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.
- #21 Master of Orion
82% matchMostly Positive77% of 8,105 reviews2016
Dev: NGD StudiosPub: Wargaming Labs
Windows · Mac · Linux
Median: 9.2 hrsMean: 101.9 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 14.5%, Strategy 12.3%, Grand Strategy 7.5% ★, Sci-fi 6.3%
Why You'll Like It: A classic 4X experience that focuses on the core pillars of space exploration, research, and diplomacy.
- #22 Star Trek: Infinite
81% 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 18.2% ★, Diplomacy 16.6% ★, Grand Strategy 15.1% ★, Space Sim 9.6% ★, RTS 8.6%
Why You'll Like It: Built on the Stellaris engine, it provides a focused grand strategy experience for fans of the Star Trek universe.
- #23 Homeworld: Deserts of Kharak
81% matchMostly Positive79% of 8,793 reviews2016
Dev: Blackbird InteractivePub: Gearbox Publishing
Windows · Mac
Median: 5.0 hrsMean: 9.6 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 45.5%, Sci-fi 16.5%, Strategy 15%, Space 11.4%, Multiplayer 10.4%
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 Gratuitous Space Battles
82% matchMostly Positive71% of 874 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 23.7%, Sandbox 19%, RTS 15.4%, Sci-fi 14.8%, Strategy 12.2%
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.
- #25 Homeworld 3
78% matchMixed41% of 8,530 reviews2024
Dev: Blackbird InteractivePub: Gearbox Publishing
Windows
Median: 4.8 hrsMean: 58.0 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 27.1%, Space 19.4%, Co-op 11.2%, Sci-fi 10.1%, Multiplayer 8.2%
Why You'll Like It: The latest entry in the series, offering modern graphics and refined tactical space combat for fans of the genre.
- #26 Void Destroyer 2
79% 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 25.6% ★, Space Sim 22.4% ★, RTS 12.8%, Space 10.2%, Sandbox 10.1%
Why You'll Like It: It blends space simulation with RTS elements, allowing players to command fleets while participating in the action.
- #27 Galactic Civilizations III
78% 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 32.2% ★, Grand Strategy 24.7% ★, Sandbox 11.2%, Space 10.8%, Sci-fi 8.4%
Why You'll Like It: A highly customizable 4X strategy game that allows for deep empire building and complex diplomatic interactions.
- #28 X3: Reunion
79% 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 Sim 31.1% ★, Space 26.9%, Sandbox 13.1%, Sci-fi 9.9%, Simulation 8.2%
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.
- #29 StarDrive
80% 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 48% ★, Space 17.3%, RTS 16.3%, Strategy 10%, Sci-fi 7.8%
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.
- #30 ENDLESS™ Space - Definitive Edition
77% matchVery Positive81% of 9,559 reviews2012
Dev: AMPLITUDE Studios
Windows · Mac
Median: 4.6 hrsMean: 13.3 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% ★, Space 16.3%, Strategy 12.3%, Diplomacy 8.4% ★, Sci-fi 8%
- #31 Planetary Annihilation: TITANS
75% matchVery Positive85% of 14,430 reviews2015
Dev: Planetary Annihilation Inc
Windows · Mac · Linux
Median: 3.9 hrsMean: 17.4 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 21.4%, Grand Strategy 17.6% ★, Base Building 11.9%, Online Co-Op 10.1%, Space 8.8%
- #32 Sins of a Solar Empire: Trinity®
77% 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 19.8% ★, Diplomacy 19.7% ★, Space Sim 14.1% ★, RTS 10.9%, Military 9.7%
- #33 Galactic Civilizations® II: Ultimate Edition
76% 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 32.1% ★, Grand Strategy 25.6% ★, Base Building 14.3%, Diplomacy 8.6% ★, Strategy 5.1%
- #34 Sid Meier's Civilization®: Beyond Earth™
76% matchMixed60% of 22,976 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 15.3% ★, Space 14.7%, Sci-fi 12.2%, Strategy 10.4%
- #35 Age of Wonders III
75% matchVery Positive80% of 12,750 reviews2014
Dev: Triumph StudiosPub: Paradox Interactive
Windows · Mac · Linux
Median: 3.7 hrsMean: 18.1 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 54.1% ★, Strategy 24%, Grand Strategy 8% ★, Multiplayer 7.9%, Co-op 4.6%
- #36 Skillshot City
74% matchVery Positive84% of 2,618 reviews2017
Dev: Nik Nak Studios
Windows · Linux
Median: 3.0 hrsMean: 6.9 hrs≥1hr: 76%
Loot, shoot, cast and drive in this chaotic PvP Roguelite. Level up fast, draft wild skills, and create crazy combos on the fly. Explore a GTA-style battle royale with no queues or downtime as you prepare to win the final fight!
Why similar: Online Co-Op 39.5%, Co-op 32.4%, Multiplayer 23.2%, Singleplayer 5%
- #37 Supreme Commander 2
74% matchVery Positive88% of 12,779 reviews2010
Dev: Gas Powered GamesPub: Square Enix
Windows
Median: 7.6 hrsMean: 31.1 hrs≥1hr: 76%
Includes 47 Steam achievements, leaderboards, and stats!
Why similar: RTS 29.4%, Grand Strategy 14.9% ★, Base Building 12.6%, Strategy 10.7%, Sci-fi 8%
- #38 Murderous Pursuits
73% matchMixed64% of 2,813 reviews2018
Dev: Blazing Griffin
Windows
Median: 3.1 hrsMean: 5.2 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%, Simulation 28.6%, Strategy 26.9%, Co-op 9.5%
- #39 Lord of Rigel
69% matchMixed70% of 102 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 16.7% ★, Grand Strategy 13.9% ★, Space Sim 11.1% ★, Military 9.9%
- #40 Avorion
70% 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: Space Sim 31.4% ★, Space 15.9%, Sandbox 14.9%, Management 11.1%, Sci-fi 9.3%
- #41 Elite Dangerous
71% matchMostly Positive77% of 105,113 reviews2015
Dev: Frontier Developments
Windows
Median: 18.4 hrsMean: 146.5 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 38.3% ★, Space 19.3%, Sci-fi 9%, Online Co-Op 6.8%, Multiplayer 6.5%
- #42 Space Empires V
73% matchMostly Positive73% of 469 reviews2006
Dev: Malfador MachinationsPub: Strategy First
Windows
Median: 36 minMean: 14.4 hrs≥1hr: 46%
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 57.7% ★, Space 16.8%, Strategy 14.6%, Sci-fi 9.6%, Singleplayer 1.3%
- #43 AI War: Fleet Command
72% matchVery Positive82% of 1,594 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 18.1%, Strategy 16.4%, Grand Strategy 15.9% ★, Space 11.9%
- #44 Rebel Galaxy
71% 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 38.7%, Space Sim 28.3% ★, Sci-fi 14.4%, Sandbox 7.9%, Simulation 4.3%
- #45 Satellite Reign
71% matchMostly Positive72% of 5,308 reviews2015
Dev: 5 Lives Studios
Windows · Mac · Linux
Median: 4.5 hrsMean: 19.0 hrs≥1hr: 82%
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 24.3%, Strategy 23.5%, Co-op 21.5%, RTS 19.9%, Multiplayer 8.3%
- #46 Offworld Trading Company
70% matchMostly Positive77% of 5,669 reviews2016
Dev: Mohawk GamesPub: Stardock Entertainment
Windows · Mac
Median: 3.6 hrsMean: 34.8 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 13.9%, Management 13.3%, Online Co-Op 12.9%, Space 12.2%, Sci-fi 11%
- #47 Galactic Ruler
69% matchMixed49% of 121 reviews2022
Dev: BattleGoat Studios
Windows
Median: 3.4 hrsMean: 7.1 hrs≥1hr: 96%
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 16.7% ★, Space Sim 16.1% ★, RTS 10.1%, Co-op 9.7%
- #48 X Rebirth
72% 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 32.5%, Space Sim 24.4% ★, Sci-fi 14%, Simulation 13.3%, Sandbox 10.9%
- #49 Emperor of the Fading Suns Enhanced
64% matchVery Positive95% of 172 reviews2025
Dev: Holistic Design, Inc.
Windows · Linux
Command interstellar forces in this epic return of the 4X strategy classic. From planetary politics to galactic warfare, the stakes couldn’t be higher as you lead your Royal House through battles on land, sea, air, and the vast reaches of space.
Why similar: 4X 56.4% ★, Sci-fi 13.9%, Space 12.3%, Strategy 9.5%, Multiplayer 6.5%
- #50 Age of Wonders: Planetfall
67% matchMostly Positive80% of 6,593 reviews2019
Dev: Triumph StudiosPub: Paradox Interactive
Windows · Mac
Median: 3.9 hrsMean: 15.9 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 44.2% ★, Management 13.7%, Space 12%, Sci-fi 11%, Strategy 10.6%
- #51 Interstellar Space: Genesis
67% 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 28.8% ★, Grand Strategy 16.9% ★, Diplomacy 13.8% ★, Space 10.8%, Sci-fi 7.2%
- #52 Deponia: The Complete Journey
68% matchVery Positive85% of 6,710 reviews2014
Dev: Daedalic Entertainment
Windows · Mac · Linux
Median: 3.7 hrsMean: 14.9 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 57.7%, Singleplayer 42.3%
- #53 Space Reign
62% matchMostly Positive76% of 377 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 38.7% ★, RTS 20.3%, Space 18.4%, Sci-fi 11%, Strategy 6.2%
- #54 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 25.2% ★, 4X 24.1% ★, Grand Strategy 16.1% ★, Military 8.5%, Management 7.5%
- #55 Evolvation
68% matchMixed68% of 950 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 44.7%, Simulation 26.8%, Multiplayer 17%, Sci-fi 11.5%
- #56 Orwell: Keeping an Eye On You
66% matchVery Positive90% of 15,333 reviews2016
Dev: Osmotic StudiosPub: Daedalic Entertainment
Windows · Mac · Linux
Median: 3.2 hrsMean: 8.1 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 72.7%, Singleplayer 27.3%
- #57 Starpoint Gemini 2
68% 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: Space 37.9%, Space Sim 34.5% ★, Sci-fi 11.9%, Simulation 8.4%, 3D 5%
- #58 X3: Terran Conflict
67% 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 29.7%, Space Sim 24.2% ★, Sandbox 13.6%, Sci-fi 9.2%, Simulation 8.5%