Games like Sins of a Solar Empire: Trinity®
by Ironclad Games Corporation, Stardock Entertainment
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.
View on Steam · $9.99 →
Ranked by how similar the games actually are, not by sales. Released and Price are remembered for next time.
Closest matches
$49.99Sins of a Solar Empire II
Aug 15 · Ironclad Games Corporation, Stardock Entertainment
Both: Space · RTS · 4X
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.
SpaceStrategyRTS4XSingleplayerSci-fiMultiplayerTacticalCo-opPvE👍 7,158
$29.99StarDrive
Apr 26 · Zero Sum Games
Both: 4X · Space · RTS
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.
Strategy4XSpaceIndieSci-fiRTSSingleplayerReal-TimeExploration👍 1,253
$19.99Sins of a Solar Empire®: Rebellion
Jun 12 · Ironclad Games Corporation, Stardock Entertainment
Both: Space · RTS · 4X
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.
ManagementDiplomacyOnline Co-OpMultiplayerSingleplayerSimulationSpaceStrategyRTS4X👍 10,243
$29.99Ashes of the Singularity: Escalation
Nov 10 · Stardock Entertainment, Oxide Games
Both: RTS · Base Building · PvP
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.
RTSBase BuildingReal Time TacticsPvPModdableStrategyOnline Co-OpSci-fiTranshumanismMilitary👍 2,705
$24.99Executive Assault 2
Oct 18 · Hesketh Studios Ltd
Both: RTS · Space Sim · Base Building
The RTS/FPS phenomenon has moved into space! Build your base on an asteroid, command fleets of starships for epic battles, pilot fighters, mine and trade resources, assemble robots to defend or assault other stations. Take sole command or share the glory as you fight for control of the quadrant.
RTSBuildingSpace SimStrategyBase BuildingSpaceReal-TimeFPSActionSingleplayer👍 1,604
$29.99Star Trek: Infinite
Oct 12 · Nimble Giant Entertainment
Both: 4X · Space · RTS
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.
Grand Strategy4XSpaceExplorationSandboxManagementRTSDiplomacyPvEPvP👍 3,031
$29.99Galactic Civilizations III
May 14 · Stardock Entertainment
Both: 4X · PvE
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.
AliensSci-fi4XTurn-Based StrategySandbox3DGrand StrategyModdableHex GridPvE👍 8,337
Outscape
Oct 22 · IDA Games
Both: RTS · PvP · Space
Outscape is everything you love about traditional strategy games, but places your empire within a vast online galaxy alongside other real players. Outscape rewards skillful long-term strategic gameplay with a brilliantly refreshing new take on the 4X genre.
StrategySci-fiOnline Co-OpRTSPvPSpaceExploration4XManagementEconomy👍 394
$39.99Galactic Civilizations IV
Oct 19 · Stardock Entertainment
Both: Space · 4X
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.
SpaceGrand StrategySimulation4XStrategySci-fiExplorationSandboxMultiplayerTurn-Based Strategy👍 2,210
$49.99X4: Foundations
Nov 30 · Egosoft
Both: Space · Space Sim · 4X
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.
SpaceSimulationOpen WorldSpace SimExplorationSandboxSci-fi4XStrategyEconomy👍 25,274
Also worth a look
Share some of the same DNA, but further from the original.

STAR WARS™ Rebellion
Mar 1 · Coolhand Interactive
Both: RTS · 4X · Space
It is a time of great upheaval. The first Death Star has been destroyed, marking a major victory for the Rebellion. But the Empire remains strong. As commander, you must choose to take control of either the Rebel Alliance or the Galactic Empire. Your goal: complete domination of the galaxy.
StrategyGrand StrategySci-fiClassicRTS4X1990'sSingleplayerSpace👍 1,272
$39.99Polaris Sector
Mar 22 · SoftWarWare
Both: 4X · Space · Real-Time
Can anyone build an empire in a place like this? Other factions are naturally suspicious of newcomers and may wage war at the first sign of unidentified craft. Here, a natural death is an uncommon luxury.
StrategySimulation4XSpaceReal-Time with PauseGrand StrategyReal Time TacticsResource ManagementReal-TimeSingleplayer👍 419
$7.99Star Ruler
Sep 20 · Blind Mind Studios
Both: Space · 4X · RTS
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)...
StrategyIndieSpace4XRTSSci-fiGrand StrategyGreat SoundtrackSingleplayerMultiplayer👍 261
$19.99Star Ruler 2
Mar 27 · Blind Mind Studios, Glacicle
Both: Space · 4X · RTS
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.
StrategySpace4XSci-fiRTSIndieMultiplayer👍 661
$5.99Master of Orion 2
Feb 25 · SimTex
Both: 4X · Space
Forge an empire in a universe where population growth is stripping away planetary resources. Colonize unknown planets and trade with other races for their knowledge.
Strategy4XTurn-BasedSpaceSci-fiClassicTurn-Based StrategyMultiplayerSingleplayerRetro👍 1,658
$19.99PULSAR: Lost Colony
Jun 22 · Leafy Games
Both: Space Sim · PvE · Space
The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits
Space SimOpen WorldCo-opSimulationFirst-PersonPvESpaceExplorationSci-fiMultiplayer👍 4,409
$5.99STAR WARS™ Galactic Battlegrounds Saga
Mar 1 · Ensemble Studios
Both: RTS · Base Building · Real-Time
Lead the great armies of the Star Wars™ Episode II: Attack of the Clones saga in intense real-time strategy clashes. Enter the fray as the Galactic Empire, Rebel Alliance, Wookies, Trade Federation, Gungans or Royal Naboo to determine the course of the Galactic Civil War.
StrategyRTSActionMultiplayerSingleplayerClassicSci-fiBase Building2DReal-Time👍 3,965
$24.99Lords of the Black Sun
Sep 12 · Arkavi Studios
Both: 4X · Space
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.
Strategy4XIndieSpaceTurn-BasedSci-fiTurn-Based StrategyAdventureSingleplayer👍 330
$34.99Starpoint Gemini Warlords
May 23 · Little Green Men Games
Both: Space · Space Sim · 4X
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!
SpaceRPGOpen WorldStrategySimulationSci-fiSpace SimSingleplayer4XSandbox👍 3,076
$7.99Structura
May 6 · Binary Station Studio
Both: RTS · 4X · Space Sim
Structura is a rather unique sci-fi real-time strategy set in space. Its a hybrid of rts and fps, with emphasis on combat and survival. Build your economy for war, modify the unit by adding components, explore, expand, and survive the savage waves of enemy attacks.
StrategyRTS4XSpace SimGrand StrategyBase BuildingReal Time Tactics3DStylizedFuturistic
$19.99Sword of the Stars II: Enhanced Edition
Nov 30 · Kerberos Productions
Both: 4X · Space
The Enhanced Edition contains Sword of the Stars II: The Lords of Winter and the first expansion, the End of Flesh. The new expansion introduces the new playable race, the Loa. All previous DLCs containing new avatars, new combat music, alternate voices, skins, and new badges for the warships are also included.
Strategy4XSpaceSci-fiSingleplayerMultiplayerTurn-Based StrategyLore-RichTacticalTurn-Based👍 680
$12.99Supreme Commander
Sep 28 · Gas Powered Games
Both: RTS · Base Building · Real-Time
For a thousand years, three opposing forces have waged war for what they believe is true. There can be no room for compromise: their way is the only way. Dubbed The Infinite War, this devastating conflict has taken its toll on a once-peaceful galaxy and has only served to deepen the hatred between the factions.
StrategyRTSSci-fiMultiplayerBase BuildingReal-TimeCo-opReal-Time with PauseSingleplayerRobots👍 2,325
$5.99StarFringe: Adversus
Jul 26 · Casualogic, Droid Riot
Both: RTS · Base Building · Space
This is the story about the beginning of the conquest of outer space by earthlings. It began as a global idea of saving mankind from hunger and lack of resources, and ended as a brutal and merciless war in space far from Earth.
StrategyRTSBase BuildingSpaceIndieAdventureActionExploration4XTop-Down Shooter👍 139
$49.99Stellaris
May 9 · Paradox Development Studio
Both: Space · 4X
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.
SpaceStrategyGrand StrategySci-fi4XExplorationSandboxSimulationMultiplayerReal-Time with Pause👍 142,911
-80%$2.99Space Empires V
Oct 16 · Malfador Machinations
Both: 4X · Space
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.
Strategy4XSpaceTurn-BasedSci-fiSingleplayerTurn-Based StrategyMultiplayer👍 423
$29.99Planetary Annihilation: TITANS
Aug 18 · Planetary Annihilation Inc
Both: RTS · Base Building
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!
RTSStrategyReal Time TacticsBase BuildingMultiplayerSingleplayerSci-fiWarBuildingOnline Co-Op👍 11,401
FreeStar Conflict
Feb 27 · Star Gem Inc.
Both: Space Sim · PvE
Star Conflict is an action-packed, massively multiplayer space simulation game that puts players in the role of elite pilots engaging in a widespread interplanetary skirmish. The whole world for PVP and PVE!
Free to PlayOnline Co-OpSpace SimMassively MultiplayerOpen WorldPvEActionShooterFlightTrading👍 199
$19.99Star Trek: Starfleet Command Gold Edition
Nov 22 · Interplay Entertainment Corp.
Both: Space · Real-Time · Space Sim
Dozens of missions & more than 50 ship designs put you in the captain’s chair for an amazing real-time space combat experience commanding ships from the United Federation of Planets, the Klingon Empire, the Romulan Star Empire, the Hydran Kingdom, the Gorn Confederation or the Lyran Star Empire!
StrategySimulationActionSpaceSci-fiReal Time TacticsReal-TimeSpace SimSoftwareSolitaire👍 211
$5.99Master of Orion 1
Feb 25 · SimTex
Both: 4X · Space
Forge an empire in a universe where population growth is stripping away planetary resources. Colonize unknown planets and trade with other races for their knowledge.
Strategy4XTurn-BasedSpaceClassicSci-fiSingleplayerTurn-Based Strategy2D1990's👍 441
$9.99Earth 2150 Trilogy
Nov 1 · Reality Pump Studios
Both: RTS · Space · Base Building
Your heroes and your armies will need strong leadership to take them on a spellbinding odyssey that has everything a gamer’s heart could wish for breathtaking worlds in space, battles against cunning enemies and even downright treason from your own government faction - are you up to it?
StrategyRTSSci-fiClassicSpaceBase BuildingMultiplayerSingleplayer👍 452
$29.99Interstellar Space: Genesis
Jul 25 · Praxis Games
Both: 4X · Space
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!
StrategyIndie4XSci-fiSpaceTurn-BasedTurn-Based StrategyExplorationSingleplayerTurn-Based Tactics👍 712
$14.99A Year Of Rain
Mar 13 · Daedalic Entertainment
Both: RTS · Base Building · PvP
A desolate realm, kept in flux by the rhythm of battle. A proving ground for those with great ambition. A Year Of Rain is the ultimate team real-time strategy game. Choose your faction, team up and take control of a legendary hero to lead your armies!
RTSBase BuildingCo-opPvPTeam-BasedCo-op CampaignOnline Co-OpMultiplayerCompetitiveClassic👍 503
$29.99StarDrive 2
Apr 9 · Zero Sum Games
Both: Space · 4X
StarDrive 2 is an exciting and evolutionary step forward for the StarDrive franchise. In this eagerly anticipated sequel, the core mechanics have evolved to incorporate a turn-based strategic layer, featuring spectacular realtime battles.
StrategyIndieSpaceSci-fi4XManagementTurn-BasedSingleplayer👍 1,933
$19.99STAR WARS™ Empire at War - Gold Pack
May 25 · Petroglyph
Both: RTS · Space
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?
StrategyRTSSpaceSci-fiMultiplayerSingleplayerModdableModTacticalWar👍 36,159
$9.99ENDLESS Space™ - Definitive Edition
Jul 4 · AMPLITUDE Studios
Both: 4X · Space
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.
Strategy4XSpaceSci-fiTurn-Based StrategyTurn-BasedMultiplayerSingleplayerIndieExploration👍 6,626
-90%$1.99Hexarchy
Oct 19 · Main Tank Software
Both: 4X · PvP
Hexarchy is an innovative, fast-paced, historical 4x strategy game where you use cards and deckbuilding to make your decisions. Single-player and online multiplayer.
4XDeckbuildingTurn-Based StrategyTurn-Based TacticsStrategyWarSimulationCo-opPvPMultiplayer👍 1,231
-80%$7.99Warhammer 40,000: Dawn of War III
Apr 27 · Relic Entertainment, Feral Interactive (Mac), Feral Interactive (Linux)
Both: RTS · Base Building
Step into a brutal battle between three warring factions In Dawn of War III you will have no choice but to face your foes when a catastrophic weapon is found on the mysterious world of Acheron.
StrategyRTSSci-fiMultiplayerActionMOBABase BuildingSingleplayerGoreWar👍 14,439
$19.99The Last Federation
Apr 18 · Arcen Games
Both: Space · 4X
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.
StrategySpaceSimulationIndieTurn-Based4XSci-fiGrand StrategyReal-Time with PauseTactical👍 380
$14.99Stellar Monarch
Dec 5 · Silver Lemur Games
Both: 4X · Space
Asymmetric space empire builder where you feel like the Emperor, not a logistics officer. No micromanagement, grand scale, fast paced, audiences, assassins, imperial court, disloyal admirals.
Grand Strategy4XTurn-BasedStrategySci-fiTurn-Based StrategySpaceSingleplayerDiplomacyManagement👍 207
$39.99ENDLESS Space™ 2
May 18 · AMPLITUDE Studios
Both: Space · 4X
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?
StrategySpaceSci-fi4XTurn-Based StrategyMultiplayerTurn-BasedGrand StrategyGreat SoundtrackSingleplayer👍 17,284
$9.99Imperium Galactica II
Jan 19 · Digital Reality, Gyroscope Games
Both: Space · RTS · 4X
Reintroducing a classic from the golden era of gaming, the original empire building space RTS, Imperium Galactica 2 is back and looking better than ever with new high-res textures and vivid colors.
StrategySpaceRTS4XClassicSingleplayer👍 591
$34.99Starpoint Gemini 2
Sep 26 · Little Green Men Games
Both: Space · Space Sim
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.
SpaceSimulationRPGOpen WorldSci-fiSpace SimSingleplayerActionSpaceshipsModdable👍 3,020
$19.99Armada 2526 Gold Edition
Feb 28 · Ntronium Games
Both: 4X · Space
Conquer the Galaxy In This ‘4x’ Strategy Game. Lead one of 18 different alien races to become a mighty pan-galactic empire. Manage your colonies, deploy your fleets and conduct research. Plot your strategy and turn your planets into mighty bastions.
StrategyIndie4XTurn-Based StrategySpaceSci-fi
$24.99Master of Orion
Aug 25 · NGD Studios
Both: 4X · Space
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.
Strategy4XSpaceTurn-BasedSci-fiMultiplayerSingleplayerGrand StrategyClassicRemake👍 7,333
$29.99Horizon
Feb 6 · L3O Interactive
Both: Space · 4X
Horizon is a turn-based space strategy game of galactic exploration and conquest in which you are in control of humanity’s destiny. You will explore deep space, find new frontiers and discover alien artifacts hidden on long-abandoned planets.
StrategyGrand StrategySpace4XSimulationSci-fiExplorationSandboxSingleplayerTurn-Based👍 377
FreeImperius
Jun 13 · Incognito Interactive
Both: RTS · Space · Base Building
Imperius is an easy-to-learn, hard-to-master space RTS. Command devastating ships of the Imperius Navy and prove your loyalty by destroying everything in your path, no matter the cost.
StrategyRTSSpaceSingleplayerSci-fiFuturisticReal Time TacticsWarLore-RichBase Building
$59.99Homeworld 3
May 13 · Blackbird Interactive
Both: Space · RTS
Tactical, beautiful, and wholly unique, the GOTY-winning sci-fi RTS returns with Homeworld 3. Assume control and battle through fleet combat in dazzling, fully 3D space while the award-winning story unfolds on a galactic scale.
SpaceRTSStrategySci-fiStory RichSingleplayerMultiplayerTacticalCo-opRoguelike👍 5,438
$14.99Halcyon 6: Starbase Commander (LIGHTSPEED EDITION)
Aug 9 · Massive Damage, Inc.
Both: 4X · Base Building
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.
4XTactical RPGTurn-BasedExplorationTurn-Based StrategyBase BuildingStrategy RPGRPGStrategy2D👍 587





