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 181–190 of 1,095 games matching Action-Adventure · updated 12 Oct 2026

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$ · Cheap
Players
👥 Not stated

Explore ever-shifting depths in Dungeon Door, a classic 2D pixel-art action roguelike. Play a Warrior, Archer, or Mage across 999 floors that reshape every time. Escape collapsing dungeons, gamble on mystery boxes, and crack open locked vaults.

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Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 1

Survive with your friends in the depths of a massive pit. Scavenge parts, trade with silly villagers, upgrade your vehicle, fight deadly creatures, and uncover the stories of the robots who fell before you. Fly your way back to the surface.

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Released
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$ · Cheap
Players
👥 1–4 players
Reviews
70% of 30

A 1-4 player co-op horror experience. Navigate hyper-realistic Backrooms levels and liminal spaces, survive unique entities, and uncover the dark mystery behind those levels. Extreme visual fidelity meets psychological dread.

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Released
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$ · Cheap
Players
👥 Up to 2 players
Reviews
60% of 5

FUN ROAD is a cooperative off-road adventure for two players. One drives the car, the other helps with navigation, and together you try to reach the finish line through slopes, rocks, forest, and complete physics chaos.

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$ · Cheap
Players
👥 Not stated

The Fibrous - Sci-Fi Online or Single-Player TPS (Over-The-Shoulder) covering the story of an ex-marine recruited by what's left of the military to help take back Earth after a meteor crash-lands into Earth and aliens with fiber-like skin emerge, thinking they can take this planet for their own.

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Released
Price
$ · Cheap
Players
👥 Not stated

This is a survival game where you must unveil the story and find your truth. Decide your fate and avoid trouble in the form of military bandits and keep an eye out for those pesky sharks! Explore dimensions, islands and discover civilisations. Good luck!

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Released
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$$ · Standard
Players
👥 Up to 4 players
Reviews
82% of 50

Dive into a fast paced, text based ARPG experience that fuses classic adventure with modern action-packed gameplay. Through 8 classes, 50 levels, 9 realms and challenging bosses, fight using over 130 skills and collect almost limitless loot and upgrades whilst perfecting your characters build.

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
77% of 70

A 4-player cooperative survival horror where you’ll explore the terrifying depths of the internet alongside your team of analog tech enthusiasts. Use old-school technology to purge glitches, preserve your digital sanity, and survive the strange monsters lurking in the deep web.

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

Co-op or solo sci-fi horror. Purge a biological outbreak with flamethrowers & grenades. Explore infested zones, grab keycards & stuff, then trigger the protocol to burn the Mother Organism. Team up. Erase the threat

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