Online co-op Action RTS games

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

Showing 41–50 of 110 games matching Action RTS · updated 12 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 Up to 2 players
Reviews
83% of 90

Build bases, lead an army of robots, and squash brains in this radical hybrid between RTS and third-person shooter. Join a duo of quirky heroes on a mission to save Earth, smash an evil alien corporation, and complete their comic book collection.

$$
Released
Price
$$ · Standard
Players
👥 Up to 8 players
Reviews
87% of 1,166

The Scouring is an RTS with fast pace, high attention to detail and next generation experience. Lead humans or orcs in a Classic Mode or use one of powerful Heroes to fight for victory! Play alone or with friends. Use our modding tools to create maps and custom game modes! Join The Scouring!

Free
Released
Price
Free
Players
👥 Not stated
Reviews
56% of 23

Prepare for a thrilling adventure where every decision counts. Construct your base, gather resources, and train unique troops to outsmart your opponents in tactical combat. Raid enemy villages for loot, forge alliances with other players, and expand your territory in a quest for ultimate dominance.

Not listed
Released
Price
Not listed
Players
👥 Not stated
Reviews
50% of 2

IlhaZ is an online survival game set in a post-apocalyptic archipelago. Survive against zombies, hunger, and harsh weather while interacting with other players in a brutal open world.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
75% of 37

A resource management and collaboration game where you gather, build, and progress through a unique constellation-based upgrade system. Accessible, relaxing, and endless—perfect for playing with family or friends.

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
0% of 2

"Drone: Modern Warfare" is a tactical simulation shooting game where players control various types of drones to execute reconnaissance and strike missions.The game realistically simulating the use of drones and AI technology in modern warfare, delivering an intense and thrilling combat experience.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated

Oikizo is a city-building game. Start by placing your first building and a few citizens, then make your city prosper. The strength of Oikizo lies in the ability to manage a city cooperatively with your friends.