Online co-op Action-Adventure games

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

Showing 751–760 of 1,516 games matching Action-Adventure, newest first · updated 13 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 2–11 players
Reviews
70% of 20

Cosmos simulates a spaceship bridge of up to six players, guarding your deep space stations against the menacing Kraliens and Torgoth. Immerse yourself in a modern space game with enhanced graphics and endless customization possibilities, guaranteeing countless hours of exhilarating fun.

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LEGO® Horizon Adventures™

✓ Deck Verified
$$$
Released
Price
$$$ · Expensive
Players
👥 Not stated
Reviews
60% of 406

Join machine hunter Aloy as she leads a colourful crew of heroes on a quest to save the world and learn the secrets of her past. Dive into boundless adventure, customize to your heart’s content, and take on action-packed battles solo or with friends.

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
0% of 1

Step into a world over run with Mycha, a strange mineral with seemingly magical powers. Clear monster-infested environments and protect researchers on your own or with up to three other players online. Welcome to The Federation.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
53% of 13

The game adopts a real-time combat system, allowing players to choose to join the navy or pirate guild, presenting a legendary life of the navy fighting against pirates. The game has a rich trading system.

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$$
Released
Price
$$ · Standard
Players
👥 1–4 players
Reviews
59% of 222

Unsafe Express is a cooperative first-person survival horror game for 1-4 players. Navigate through space stations, collect materials and outlast your enemies! Choose your objective based on complexity levels, then cast your vote. Gather items, exterminate hostiles, fulfill missions and repeat!

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
69% of 23

Codename: Terranova is a Co-Op Communication Game between two Players: Agent (PC) and Operator (Web App) . Speed and precision are required to complete the Mission within the time limit and set a new record. Will you have the necessary concentration?

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$
Released
Price
$ · Cheap
Players
👥 Not stated

Co-op Survival Adventure! Team up as Interstellar Outlaws aboard a newly seized Spacecraft, navigating the vast Galaxy in search of fortune. Embrace the thrilling opportunity to explore uncharted worlds while fortifying your defenses against the dark forces!

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Odd Remedy

Deck Playable
$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
87% of 165

Escape the open-world island infested with monster spiders while on duty as a prisoner alone or with your friends. Loot the city, destroy the caves, take some selfies on the way out in your car before you set sail.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
80% of 40

Get ready to face a formidable challenge in this cooperative horror game for 1 to 4 players. Explore the Ravenwood cemetery, dive into the memories of the dead, and try to steal their treasures… all while surviving relentless threats, where a single mistake can be fatal.

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