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 161–170 of 213 games matching RTS · updated 12 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 2

Buy soldiers, assemble troops, and simply command them to fight. Each branch has its own strengths, rationally match your lineup, break through the other side's defense line, defeat all the other soldiers, or go to the other side's base camp. Support multiplayer online,and lobby matching

$
Released
Price
$ · Cheap
Players
👥 Not stated

In the 5V5 strategy competitive game, you will play the role of a daimyo, managing and developing your power within 60 minutes, eliminating all enemies. You need to strategize or engage in close and distant attacks to achieve victory together with your allies.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
100% of 8

Try this small real time strategy and roguelike game where you need to defend your base against multiple waves . Each run you will have to choose between unique units and unique buffs.

$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
88% of 373

Gather resources, build your base, and lead your people to victory in this captivating reimagining of classic RTS, set in the Bronze Age. Secure fertile land, fend off raids, and stockpile food to generate knowledge and unlock powerful village advancements.

$$$
Released
Price
$$$ · Expensive
Players
👥 Not stated
Reviews
60% of 5,626

Experience warfare like never before! Men of War II, the anticipated sequel to the highly acclaimed RTS franchise is here with all-new units, locations, campaigns, game modes and true trademarks of the series: historical fidelity and action-filled gameplay on the Eastern and Western Fronts of WWII.

If you loved these, you'll love this

$$$
Released
Price
$$$ · Expensive
Players
👥 Up to 3 players
Reviews
38% of 5,449

Tactical, beautiful, and wholly unique, the GOTY-winning sci-fi RTS returns with Homeworld 3. Assume control and battle through fleet combat in dazzling, fully 3D space while the award-winning story unfolds on a galactic scale.