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 31–40 of 110 games matching Action RTS · updated 12 Oct 2026

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Reviews
94% of 17

Build spacecrafts and fight with or against your friends! This game offers physics driven gameplay, with a variety of weapons and powerups. Slice your enemies in half with a laser beam, or erase them from existence with a black hole bomb!

Free
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Price
Free
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👥 Not stated
Reviews
97% of 264

我们想打造一种很不一样的塔防游戏, 它应该很紧张,很刺激,除了策略, 还应该有英雄操控,玩起来更像我们过去玩的魔兽RPG, 潮水一样无数的怪,还能多人合作。 对了! 玩家之间还要能够公平竞技来一场PK, 这种PK要比MOBA游戏轻度一点, 可以1对1。于是有了现在的《策马守天关》!!!欢迎来体验!

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$$ · Standard
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Reviews
80% of 10

Become a knight and conquer the lands for your king and yourself! Manage your towns and resources, command your armies and peasants, and maybe even bring your fellow knight friends to assist in your quest. Feudal shenanigans await!

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$$ · Standard
Players
👥 Up to 4 players

OnlySociety: Time Traveler is a cooperative first-person shooter survival horror game where up to four players battle hordes of multiple supernatural entity-like "influenza" in an effort to escape the past.

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Reviews
85% of 216

BattleGroupVR2 is a virtual reality real-time space strategy where you explore the galaxy and lead a fleet of powerful warships from the bridge of your flagship. Explore, mine, trade, hunt. Grow your fleet, upgrade your ships, train your captains, and battle the enemy from the captain's chair.

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$ · Cheap
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Reviews
40% of 419

7 Days Blood Moons is a 4v1 fight to the death. Survivors fortify bases and scavenge for materials while the Zombie Master commands and possesses the horde to crush them. Play solo or with friends – up to 4 survivors can team up against a human or AI Zombie Master. Who will prevail?

Free
Released
Price
Free
Players
👥 Not stated
Reviews
43% of 16

《战法纪元》是一款独立开发的复古类传统网络游戏。操作简单但是玩法丰富,在游戏中你可以根据自己的喜好完全自由交易,与玩家争夺各类首领。没有职业区分,但可以通过搭配来构成自己独特的战斗体系。能够制作物品道具,建造发展自己的领地,或者攻占别人的领地。更多玩法持续更新中!

Free
Released
Price
Free
Players
👥 Up to 4 players
Reviews
60% of 10

Hell's most profitable Sinstribution™ firm is under attack by IRS operatives hell bent on tanking the company. Play as Inferna LLC's diabolical CEO or as tax-collecting Agents in this asymmetrical multiplayer RTS action dungeon crawl.

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$$ · Standard
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Reviews
81% of 81

The last world war didn't end conflict. The Iron Hand tyrannizes people, as the Resistance fights for liberation. In the resulting conflict high tech and brute force face off against guerrillas with unconventional tactics, leading to Red Chaos: A modern take on classic real-time strategy games.