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 171–180 of 213 games matching RTS · updated 12 Oct 2026

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
61% of 1,057

World War Armies is the ultimate PvP real-time strategy game. Command advanced war machines and compete for free against other players worldwide. Revolutionary mechanics reduce downtime and focus on direct engagement with the enemy, you get to the fun parts of RTS faster.

$$
Released
Price
$$ · Standard
Players
👥 Up to 8 players
Reviews
25% of 4

Solar Kingdoms is a real-time strategy game where you command forces across solar systems, engaging in large battles both in space and on the surfaces planets. Establish colonies, find resources and artifacts, and fight up to 8 factions in skirmish, large campaign, missions, and multiplayer.

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
78% of 288

Final Factory blends factory building, spaceship design, and a rich universe to explore. Build a mega factory and command a massive fleet against the hostile local aliens. Discover new technologies and unlock the secrets of an ancient civilization as you explore an infinite cosmos.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
93% of 809

Godsworn is a classic RTS with single-player & co-op focus. Experience an epic fantasy retelling of the Baltic Crusades set in a world inspired by pagan mythology. Choose a divine hero, rally worshippers alongside mythical creatures, and smite the unworthy!

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
65% of 11,654

Command Mobile Outpost and take XEN Firearm to venture deep into the Signet surveillance off-limit area. Collect unique Weapon Units. Amp up the firepower of the Outpost that fights with you. This is an FTD game - FPS, Tower Defense, Base Building and much more all at the same time.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
54% of 31

Do U Copy? is a VR co-op game ideal for parties, designed for friends, families, and couples. It challenges players with bank heists, where one is a VR Thief and the other a Hacker on PC/Mobile. Teamwork and strategy are key to success in this exciting heist adventure.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 3 players
Reviews
91% of 153

TimeMelters is a strategy hero-defense game where every run creates a new timeline. Play the full campaign solo or in two-player online co-op using our free Friends Pass — or put your skills to the test in a Challenge Mode with over 40 unique, time-twisted puzzles!

Free
Released
Price
Free
Players
👥 Not stated
Reviews
63% of 22

Dive into the Smash Cup universe! This genre-blending top-down shooter allows you to craft your own base, combining MOBA, tower defense and deck-building elements for a unique battle experience!