Games like PlanetX

If the competitive and replayable rhythm of PlanetX stuck with you, this helps. These games keep things close enough to feel familiar.

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.

   Competitive, Replayable

   91%91% of 2,908 Steam reviews are positive5Players online now: 5Free

2. Periphery Online

   

   A refugee capsule lands on an uninhabited planet. You have to survive, rebuild civilization and, if possible, regain control over the Earth. One big universe, one endless pvp session for all players.

   Competitive, Replayable

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

3. War Planet Online: Global Conquest

   

   Build a base, raise armies of tanks, jets and artillery, and march them across a real-world map against thousands of live opponents. An MMO strategy war where alliances matter and the fighting never stops. Fair warning: spending money speeds things up a lot.

   Competitive

   62%62% of 989 Steam reviews are positive160Players online now: 160Free

4. Nexus Legacy

   

   Rebuild civilization from one planet in a persistent online 4X. Grow an economy, design fleets for the job, spy before you strike, and fight alliances for a galaxy that keeps moving while you sleep. Slow-burn strategy with real rivals: every mistake becomes someone else's opening.

   Competitive, Replayable

   66%66% of 387 Steam reviews are positive85Players online now: 85Free

5. Prosperous Universe

   

   Run your own spacefaring company in a player-driven economy. It moves in real time, so a few smart decisions a day go a long way. No combat, no grind: just business, and plenty of it.

   Competitive, Replayable

   72%72% of 1,117 Steam reviews are positive25Players online now: 25Free

6. Win That War!

   

   Win That War! is a massive scale real-time strategy game, putting thousands of players at the heart of a single campaign of fierce galactic conquest. Discover new planets. Develop your arsenal. Strive to be the best to extend the domination of your corporation.

   Competitive, Replayable

   54%54% of 26 Steam reviews are positive$19.99

7. Andromeda: Rebirth of Humanity

   

   Andromeda is a hybrid between a Space 4X and an MMO. An online universe sandbox with 2 galaxies full of planets to colonize. Build structures like Mines to generate resources to build ships and engage in fleet battles with NPCs and other players, or just sit and chat with the friendly community.

   Also in Co-op · Competitive, Replayable

   65%65% of 118 Steam reviews are positive4Players online now: 4Free

8. Operation: New Earth

   

   Command a military stronghold on an Earth overrun by aliens, raise an army, chase the alien element Neutronium, and fight other human factions for what is left of the planet. A long-haul multiplayer strategy where alliances, politics and patience matter more than reflexes. Fair warning: spending money speeds things up a lot, and the pace is slow.

   Competitive

   60%60% of 849 Steam reviews are positive263Players online now: 263Free

9. Iron Pact

   

   A persistent, planet-scale real-time strategy MMO on one shared Earth. Forge alliances or betray them, hold your supply lines, and live with every mile of ground you take or lose. Real-time fronts that never pause. No rounds, no resets.

   Also in Co-op · Competitive, Replayable

   38%38% of 55 Steam reviews are positive1Players online now: 1Free

10. 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?

    Also in Co-op · Competitive, Replayable

    81%81% of 90 Steam reviews are positiveFree

11. Nova Empire

    

    Build up a Space Empire and establish control of the Galaxy and the Universe! Nova Empire is a multiplayer space game in which the aim is to build your empire and conquer the galaxy in epic space battles against your rivals with other allies worldwide!

    Competitive, Replayable

    55%55% of 345 Steam reviews are positive25Players online now: 25Free

12. Imagine Earth

    

    Build your own global colonies on distant worlds. Manage energy and resource supplies and produce goods for space trade. Form economic and diplomatic alliances or take over competing corporations. Conduct research to protect your colonists from disasters and avoid a climate crisis.

    Replayable

    79%79% of 813 Steam reviews are positive4Players online now: 4$24.99

Hidden gems like PlanetX

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

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 1,858 Steam reviews are positive97Players online now: 97$7.79

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 1,352 Steam reviews are positive96Players online now: 96$39.99

Relentless Expanse

Capture and upgrade planets, outsmart your enemies, and conquer the galaxy!

91%91% of 113 Steam reviews are positiveFree

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 2,908 Steam reviews are positive5Players online now: 5Free

FrontWars

Turn a small territory into an empire on a shared world map, where a full match fits into a coffee break and every round plays out differently.

75%75% of 173 Steam reviews are positive158Players online now: 158Free

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 1,608 Steam reviews are positive6Players online now: 6$24.99

Diplomacy is Not an Option

Build a medieval town, raise armies and survive massive sieges with real-time-with-pause tactics.

85%85% of 11,047 Steam reviews are positive577Players online now: 577$29.99

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 7,259 Steam reviews are positive848Players online now: 848$49.99

Nexus Legacy

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

66%66% of 387 Steam reviews are positive85Players online now: 85Free

Galaxy Life

The Starlings are tiny, orange and out for galactic conquest, and they are yours.

91%91% of 8,641 Steam reviews are positive300Players online now: 300Free

Imagine Earth

Build your own global colonies on distant worlds. Manage energy and resource supplies and produce goods for space trade.

79%79% of 813 Steam reviews are positive4Players online now: 4$24.99

Newest games like PlanetX

FrontWars

Turn a small territory into an empire on a shared world map, where a full match fits into a coffee break and every round plays out differently.

75%75% of 173 Steam reviews are positive158Players online now: 158Free

OpenFront

Claim land, build an economy and negotiate your way to dominance against real opponents in fast multiplayer rounds.

86%86% of 1,266 Steam reviews are positive620Players online now: 620$6.99

Solar Wave

A large-scale 4X strategy game with indirect control and a focus on simulating a space empire.

73%73% of 83 Steam reviews are positive$17.99

Stellar Odyssey

Chart a vast procedural universe, craft and trade, and build territory together with your Squadron at whatever pace suits you.

63%63% of 142 Steam reviews are positive78Players online now: 78Free

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 1,352 Steam reviews are positive96Players online now: 96$39.99

Nexus Legacy

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

66%66% of 387 Steam reviews are positive85Players online now: 85Free

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

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

Calyx

Build a fortified base on a hostile planet and fight back a spreading alien plant with tanks, flamethrowers and an orbital laser.

87%87% of 516 Steam reviews are positive72Players online now: 72$18.74

War of Dots

Claim territory and command minimalist armies in quick tactical matches against other players.

81%81% of 7,745 Steam reviews are positive89Players online now: 89Free

Terra Invicta

Steer one of seven factions through an alien arrival, from covert politics on Earth to fleet battles across the Solar System.

79%79% of 9,162 Steam reviews are positive578Players online now: 578$39.99

A Planet of Mine MasterMine Edition

A Planet of Mine Mastermine Edition is a cozy 4X game with mass strategy!

94%94% of 32 Steam reviews are positive$9.99