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 201–210 of 213 games matching RTS · updated 12 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 Up to 8 players
Reviews
15% of 13

Kingdoms Rise and Fall is a captivating Real-Time Strategy game that takes you on an epic journey through different eras, spanning the entirety of history and beyond! Kingdoms Rise & Fall focuses more on culture, science, and keeping your nation happy over time.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
86% of 1,629

Play solo or in co-op with friends, take control of the hive and protect it from enemies. Build factories and defence, research technologies and, if necessary, use nuclear weapons, but do not let the enemies harm the queen!

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
66% of 3

Conquer Gaul in Caesar's legendary campaigns. Every choice shapes your empire—will you lead it to glory or ruin? Keep your people fed, your cities thriving, and your legions strong as you forge your legacy through the ages.

Free
Released
Price
Free
Players
👥 Up to 2 players
Reviews
80% of 20

Strategy, witches, time travel... and online Coop! Download the Friend's Pass and play the full Coop campaign for free with a friend who owns the full version of TimeMelters!

Free
Released
Price
Free
Players
👥 Up to 4 players
Reviews
69% of 7,007

Save lives – be a hero! Join forces against the chaos in the newest title of the award-winning EMERGENCY series. Take up your shift as incident commander and coordinate with other players to fight fires, arrest gangsters and rescue injured civilians. Your city needs you!

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
92% of 858

BattleGroupVR is a first person real-time space strategy where you lead a fleet of powerful warships into battle from the bridge of your own flagship. Assemble your fleet, upgrade your load-outs, train your captains, engage the enemy and secure the sector. Try not to go down with the ship.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
72% of 261

Delivery INC is a fast-paced time management game where you’ll be challenged with quick decision making and planning. Build a fleet of vehicles and drivers. Make deliveries before the customer’s patience runs out. Put your logic and delivery skills to the test in any real-world city.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
0% of 1

Welcome to this multiplayer survival sandbox game! In this world, you will need to establish your own survival base from scratch, collect materials, make tools, build towns, manufacture weapons, explore unknown fields, and so on. You can team up with other players and survive together, as well as en

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