Games like Relentless Expanse

Hooked on the replayable and competitive side of Relentless Expanse? You might settle into these games easily.

1. Planet S

   

   Planet S is a real-time strategy game about colonizing a whole solar system. Claim procedurally generated planets with a spaceport, build cities, feed production chains and grow your faction into a scientific or military power. Play solo or with up to seven friends, in peace or open war.

   Replayable, Competitive

   91%91% of 2,909 Steam reviews are positive10Players online now: 10Free

2. Galcon 2: Galactic Conquest

   

   Galcon 2 is a demolition derby in space! Send swarms of ships from planet to planet to conquer the galaxy in this fast paced multiplayer strategy game!

   Replayable, Competitive, Minimalist

   83%83% of 873 Steam reviews are positive2Players online now: 2Free

3. Idle Expanse

   

   A sci-fi themed incremental game which allows you to expand your capitalistic empire across the galaxy! Hire mercenaries to pillage alien planets for resources, with the singular goal of making as much money as possible as quickly as possible! Totally not a playful commentary on real Terran society.

   Replayable

   54%54% of 153 Steam reviews are positiveFree

4. Ruthless Conquest

   

   Send the fleet to capture planets and expand your empire, until you vanquish them all! No ads, no in-app purchases, completely free. Local and internet multiplayer is supported in this galactic strategy game. Six levels of challenging AI await you for practice matches and for making up numbers.

   Replayable, Competitive, Minimalist

   86%86% of 99 Steam reviews are positiveFree

5. Solaris

   

   Discover a space strategy game filled with conquest, betrayal and subterfuge. Build alliances, make enemies and fight your way to victory and galactic domination. Will you conquer the galaxy?

   Replayable, Competitive, Minimalist

   81%81% of 90 Steam reviews are positiveFree

6. Galaxy Reavers

   

   This is a fun yet challenging RTS game. To survive in the vast galaxy, you need to build up your own fleet and customize your warships. You will also learn to control them efficiently in battle to defeat your enemies, conquer planets, and expand your galactic empire!

   Replayable, Competitive

   67%67% of 170 Steam reviews are positive$4.99

7. Planets Under Attack

   

   Play as humans or robots in a brand new sci-fi strategy adventure! Travel into the far reaches of space, through cleverly designed star constellations and variable game modes, conquering enemy planets using 15 combinable technologies.

   Replayable, Competitive

   63%63% of 319 Steam reviews are positive$11.99

8. PlanetX

   

   A persistent real-time strategy MMO on one shared planet. Other players will come for your land while you sleep, unless your shield is up. Wars take days, and alliances decide them. Build an economy that can feed an army, then hold your border. Expect ten hours before you feel competent.

   Replayable, Competitive

   67%67% of 54 Steam reviews are positiveFree

9. Battle for Orion 2

   

   Earth has been destroyed. Mankind is fractured. The galaxy is at war. But one hope remains: a new home for mankind. Probes detected a habitable planet in the Orion sector. You must fight your way to it, but nothing is as it seems. A more devious plan is underway that threatens the entire galaxy.

   Replayable, Competitive, Retro

   80%80% of 59 Steam reviews are positive$14.99

10. Executive Assault 2

    

    An RTS where every ship, station and robot can become your body. Build an asteroid base, command fleets, then jump into the cockpit or a robot's chassis and fight the battle yourself. Space strategy and first-person chaos in one war for the quadrant.

    Replayable, Competitive

    82%82% of 1,609 Steam reviews are positive9Players online now: 9$24.99

11. Auralux: Constellations

    

    Auralux: Constellations is the awaited sequel to Auralux, the critically acclaimed minimalistic Real Time Strategy game. Explore a dozen new gameplay mechanics through each constellation, one new feature at a time. It's Real-­Time Strategy, deconstructed.

    Replayable, Competitive, Minimalist

    78%78% of 156 Steam reviews are positive4Players online now: 4$9.99

12. Lazy Galaxy 2

    

    Lazy Galaxy 2 is an idle/clicker game with base-building and RTS elements. Lead an evil (albeit lazy) alien race to conquer the universe! Expand your base, fight vicious foes, and conquer the galaxies. Acquire combat experience and convert into candy, the most precious alien resource!

    Replayable, Retro

    77%77% of 169 Steam reviews are positive2Players online now: 2$7.99

Hidden gems like Relentless Expanse

From Glory To Goo

Grow a settlement on a hostile world, wall it in, and answer the Goo with orbital fire before they reach your gates.

96%96% of 1,871 Steam reviews are positive115Players online now: 115$11.99

Annihilate The Spance

Annihilate The Spance is a single-player RTS where your shipyards build endlessly and your ships fight on their own.

89%89% of 355 Steam reviews are positive6Players online now: 6$29.99

ZeroSpace

Lead huge armies and orbital strikes in a fast sci-fi war, or join a friend in a co-op campaign that changes every season.

78%78% of 1,357 Steam reviews are positive77Players online now: 77$39.99

Planet S

Claim procedurally generated planets, raise cities from a single spaceport, and grow your faction into a scientific or military power, alone or…

91%91% of 2,909 Steam reviews are positive10Players online now: 10Free

Space Reign

An indie space-sim and strategy game featuring ship and fleet combat mixed with RTS elements.

72%72% of 454 Steam reviews are positive7Players online now: 7$19.99

Executive Assault 2

Run a space empire from the strategy map, then take direct control of a ship, robot or turret to fight the battle yourself.

82%82% of 1,609 Steam reviews are positive9Players online now: 9$24.99

Sins of a Solar Empire II

A real-time 4X where tactics and empire-building happen in one mode with no turns.

82%82% of 7,270 Steam reviews are positive719Players online now: 719$49.99

Nexus Legacy

Rebuild civilization from one planet in a persistent online 4X.

66%66% of 392 Steam reviews are positive92Players online now: 92Free

Dust Fleet

Assume command of a battle fleet and deploy immediately to the Dust Zone, commander.

76%76% of 199 Steam reviews are positive1Players online now: 1$19.99

Stellar Warfare

Space RTS with base building and ship customization. Personal passion project.

80%80% of 321 Steam reviews are positive1Players online now: 1$9.99

Lazy Galaxy 2

Lazy Galaxy 2 is an idle/clicker game with base-building and RTS elements. Lead an evil (albeit lazy) alien race to conquer the universe!

77%77% of 169 Steam reviews are positive2Players online now: 2$7.99

StarFringe: Adversus

Build extraction and processing networks, fight for control points, and outlast an enemy that wants the same ore you do.

69%69% of 139 Steam reviews are positive1Players online now: 1$5.99

Newest games like Relentless Expanse

Empires of a Tiny Universe

Empires of a Tiny Universe is a relaxed single-player RTS where you build and expand your empire across space.

80%80% of 15 Steam reviews are positive$4.99

ZeroSpace

Lead huge armies and orbital strikes in a fast sci-fi war, or join a friend in a co-op campaign that changes every season.

78%78% of 1,357 Steam reviews are positive77Players online now: 77$39.99

Nexus Legacy

Rebuild civilization from one planet in a persistent online 4X.

66%66% of 392 Steam reviews are positive92Players online now: 92Free

Periphery Online

A refugee capsule lands on an uninhabited planet. You have to survive, rebuild civilization and, if possible, regain control over the Earth.

70%70% of 53 Steam reviews are positive$4.99

Solar Expanse - Space Exploration Manager

Run a space company at your own pace, moving cargo across the solar system one careful calculation at a time.

87%87% of 1,347 Steam reviews are positive107Players online now: 107$17.99

Riftborne

Riftborne is a classic terminal based, real time, grand strategy game. Construct space ships. Take part in factional warfare.

92%92% of 123 Steam reviews are positive$7.99

Space Reign

An indie space-sim and strategy game featuring ship and fleet combat mixed with RTS elements.

72%72% of 454 Steam reviews are positive7Players online now: 7$19.99

Galaxy Idle Clicker

An idle space game that keeps running while you are away, then hands you astronomical numbers when you check back in.

74%74% of 1,228 Steam reviews are positive541Players online now: 541Free

PlanetX

A persistent real-time strategy MMO on one shared planet. Other players will come for your land while you sleep, unless your shield is up.

67%67% of 54 Steam reviews are positiveFree

Annihilate The Spance

Annihilate The Spance is a single-player RTS where your shipyards build endlessly and your ships fight on their own.

89%89% of 355 Steam reviews are positive6Players online now: 6$29.99

Stardust Exile

Stardust Exile is an RTS set in the Milky Way galaxy, containing currently known stars and exoplanets with their real characteristics.

70%70% of 44 Steam reviews are positive2Players online now: 2$14.99

Sins of a Solar Empire II

A real-time 4X where tactics and empire-building happen in one mode with no turns.

82%82% of 7,270 Steam reviews are positive719Players online now: 719$49.99