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

