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 721–730 of 1,516 games matching Action-Adventure, newest first · updated 13 Oct 2026

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
32% of 324

Lost Islands is a Cold Weapon PvPvE online multiplayer action game. You will play an adventurer to an unknown island, killing and co-operating with monsters and other adventurers on the island, embarking on an exciting adventure and eventually escaping with the treasure.

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PIT OF GOBLIN

✓ Deck Verified
$
Released
Price
$ · Cheap
Players
👥 2–4 players
Reviews
84% of 927

In this online horror co-op, you play as a scrappy goblin, scavenging dungeons, dodging traps, and fleeing monsters to feed the Goblin King-Queen. Team up with goblin pals, or go rogue, as you dive deep and cause chaos! Fail to feed them, and you might be the next meal!

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Q2 HUMANITY

Deck Playable
$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
89% of 56

The sequel to the physics-based puzzle game 'Q REMASTERED,' titled 'Q2 HUMANITY,' introduces characters or 'humans' that now appear in the game. These 'humans' can jump, bounce, throw things, and sometimes even exhibit special abilities. 'Q2' can be played solo or with up to 4 players.

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$
Released
Price
$ · Cheap
Players
👥 1–8 players
Reviews
100% of 3

In Flock of Dogs, ride flying dogs that live on a flying whale. Together with your friends, go on a hand-drawn, procedurally-generated, Dr. Seussian, roguelike road trip through the sky. Co-op multiplayer for 1-8 players online and/or locally. There's also a bunch of minigames.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 3

Nitrogen Narcosis is a thalassophobes deep diving nightmare, set in sinking and sunk abandoned facilities. You and up to 7 other employees wearing the cheapest deep-dive suit money can buy are sent in to recover old materials from these facilities and return it to your captains submarine!

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Capuchin

Crossplay
Free
Released
Price
Free
Players
👥 Not stated
Reviews
81% of 194

This game has unique locomotion where you play as a capuchin and roam around alone or with friends. You can roam around, get eaten by Dave, explore the environment, learn new ways to move, What more would you need other then to be a capuchin?!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
0% of 1

Hidden Bloodhunt is an exhilarating multiplayer game where tension runs high. Play as an innocent or become a traitor. Use strategy, deception, and teamwork to survive. Who will prevail in this manhunt where shadow and cunning are your allies? Get ready to hunt or be hunted in Hidden Bloodhunt!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
90% of 22

Scavenge through abandoned locations with your friends, buy tools, and venture further into eerie corridors and rooms filled with monsters and ghosts, then haul the loot back to the truck before dawn.

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$$$
Released
Price
$$$ · Expensive
Players
👥 Not stated
Reviews
72% of 4,834

Pantheon: Rise of the Fallen is a deeply social high fantasy MMORPG that challenges its players and rewards effort. Join the denizens of Terminus to uncover the mysteries of a world divided by Celestial loyalty… and betrayal.

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

Pyromania is an action-packed horde survival game. Strategy and movement are key to surviving the ever-growing hordes of zombies, wild animals and other monsters. It can be played either solo or in online-coop with up to 4 players.

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