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 181–190 of 213 games matching RTS · updated 12 Oct 2026

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Free
Released
Price
Free
Players
👥 Up to 8 players
Reviews
95% of 43

Okashi Towers is a Real Time Strategy game with Tower Defense elements. Gather candy resources to build tower units or go on offense and summon creatures to attack other player bases. Join with up to 8 players and choose one of the four factions that fits your play style best

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
80% of 91

New Real Time Strategy Game based on medieval times, where you will control powerful factions and empires, with large-scale epic battles, asymmetric civilizations, unit customization system with RPG elements, dynamic AI, 8K support and much more.

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
50% of 8

Rage of Mechs is a multiplayer turn-based strategy game set in a post-apocalyptic world. Customize your Mechs and fight in tactical arena battles against other players. Every move matters. Outsmart, outmaneuver, and dominate the arena.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
62% of 16

《大话战国Online》是一款Q版仿3D即时战斗类MMORPG,取材于中国“战国七雄”历史时期,温馨可爱的东方武侠画风,超萌宠物、骑宠设计,充满温馨的门派、部落,仿3D即时战斗、队伍群P、部落战争、国战争霸……文化部推荐第三批适合未成年人网游产品之一。

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$$
Released
Price
$$ · Standard
Players
👥 2–4 players
Reviews
93% of 32

Discover one of the hardest tower defense games with strategic elements, individual gameplay and challenging mechanics. Play together with your friends in co-op mode, create a team and compete with other players in the online ranking.

Free
Released
Price
Free
Players
👥 Not stated
Reviews
54% of 1,291

Immerse yourself in the times of the Second World War II and become a real hero! Shoot, capture, win – the path to glory is paved with shells!

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$$$
Released
Price
$$$ · Expensive
Players
👥 Up to 2 players
Reviews
86% of 2,404

The Absolute Evil and its trusted *cough* servant, the Dark Elf Thalya, return in Dungeons 4 after the events of its fabulous predecessor to bring about their triumph over the forces of good once more.

Free
Released
Price
Free
Players
👥 Not stated
Reviews
64% of 91

Three Kingdoms: Battle of Generals is a multi-player online real-time strategy game based on the Three Kingdoms history which recreates realistic landscapes in the world map. Look out for flank attacks and road blocks from your enemies when you explore the open world and build your city.

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