Online co-op Action-Adventure games

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

Showing 321–330 of 1,513 games matching Action-Adventure · updated 13 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 1–6 players
Reviews
55% of 255

Lift and throw anything as you build and manage your kingdom in this chaotic city builder for 1-6 players. Harness the power of your soul-stealing crown to defend your citizens from bandits and mutants, farm the land, and gather resources. Keep citizens happy or see them desert you!

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
59% of 16,159

<The Seven Deadly Sins: Origin> is an open-world anime RPG set in the universe of [The Seven Deadly Sins]. Step into the role of Prince Tristan of Liones and explore an open-world Britannia, as you embark on a journey to restore order to a world thrown into chaos by the collision of time and space.

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$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
50% of 2

Experience the world at any scale! Fly as a tiny Pixie or dominate as a Half-Giant in this evolving VR RPG. Master 7 classes, 10 races, and random elemental affinities. An active work-in-progress where your perspective changes everything. Forge your legend today!

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players

Play as heroic Beans in a fight to save Beanopolis from an evil invasion. Team up solo or in up to 4-player co-op, battle through 4 biomes with day & night cycles, and protect your home planet and your race.

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$
Released
Price
$ · Cheap
Players
👥 Not stated

You are trapped in the same facility, aiming to find a way out through the scattered "Vaccine Injectors". The game's core revolves around the crucial vaccines.

Free
Released
Price
Free
Players
👥 Not stated
Reviews
55% of 79

东汉末年,群雄割据,民不聊生——但对你来说,风浪越大,鱼越贵! 欢迎来到 《我在三国开黑店》:一款融合经营模拟、轻度搜打撤与角色养成的三国题材动作冒险游戏。在这里,你不是将军,不是谋士,而是一位深谙“黑店之道”的少东家:平日里高价卖货、训练手下、笼络名将;深夜悄悄出城、搜刮物资、抢夺宝藏!

$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
100% of 1

Capture monsters and throw physics objects in shifting dungeons! Farm, feed, sacrifice, and sell them from your basement. 1-4 players horror dungeon crawling X creature collection & farming! R.E.P.O. meets Slime Rancher / Horror Pokémon!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
60% of 5

While exploring the remnants of a forgotten civilization, you realize the forest is far from alone. You must confront the guardians of this dark past and survive.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 6 players
Reviews
96% of 29

Team up with up to 5 friends in this scientifically accurate-ish co-op adventure. Play as dung beetles trying to roll your precious dung ball safely home. The wildlife is dangerous, but your friends might be worse.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
86% of 15

A third-person action game that challenges your reflexes and reasoning with deadly traps, puzzles, and precision. Overcome extreme laboratory trials and discover what awaits you beyond the next step.

If you loved these, you'll love this