Online co-op RTS games

Every online co-op RTS game on Steam we know of, newest first. Add tags or a price band to narrow it down.

Showing 151–160 of 213 games matching RTS · updated 12 Oct 2026

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Players
👥 Not stated
Reviews
91% of 121

Become a master strategist in this physics-based Real-Time Tactics game! Command minifig-inspired armies and customize strategies with hand-drawn formations. Conquer unique campaigns for all five armies and unleash massive battles in both single-player and multiplayer modes. Victory awaits!

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👥 Not stated
Reviews
60% of 10

Engage in real-time battles with customizable space warships. Explore the galaxy, forge alliances, develop powerful ships, and defeat alien invaders.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
89% of 173

Welcome to Scourge of War, a real-time 3D computer game/simulation developed by NorbSoftDev, the company headed by renowned game designer Norb Timpko, designer of Mad Minute Games' acclaimed Take Command series. Scourge of War is the epitome of historical command simulations.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 8 players

Micro Wars is a fast-paced RTS that throws you into the action in short, intense online battles featuring up to 8 players. Tailor your strategy with a variety of commanders and units, build your base, and micro your way to victory. Hone your skills with the campaign, and then climb the ladder ranks!

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Released
Price
$$ · Standard
Players
👥 Up to 8 players
Reviews
80% of 947

Unleash voxel warfare in 9-Bit Armies: A Bit Too Far. Lead a modern military, build bases, unlock units, and attack in all-out war. Engage on land, sea and air in over two dozen missions, online skirmishes, or co-op. Easy to learn, a challenge to master.

$$$
Released
Price
$$$ · Expensive
Players
👥 Not stated
Reviews
85% of 61

Welcome to Scourge of War, a real-time 3D computer game/simulation developed by NorbSoftDev, the company headed by renowned game designer Norb Timpko, designer of Mad Minute Games' acclaimed Take Command series. Scourge of War is the epitome of historical command simulations.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 2–8 players
Reviews
100% of 1

Game vault where you can find numerous gamemodes to play. We have RTS Game where you buy units and defend your base, Arena brawl where you need to push others from platform and a Racing game. More games are in progress!

$$$
Released
Price
$$$ · Expensive
Players
👥 Up to 10 players
Reviews
82% of 7,203

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.