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 241–250 of 1,095 games matching Action-Adventure · updated 12 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 Up to 8 players
Reviews
100% of 2

A hardcore pirate survival game set during the Golden Age of Piracy. Stranded on a hostile island after a mutiny, you must scavenge, hunt, craft, and survive against pirates, wildlife, and dwindling resources.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
83% of 6

The test cats have broken free! They're getting into all the equipment, from jetpacks to lawnmowers and paintball guns! Bounce, bash, and blast your way to the top of the scoreboard! Is there more to the lab? Who's behind it all?

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
88% of 53

A 4-player co-op horror comedy where you drop in as couriers delivering packages in a dystopian world ruled by grotesque monsters. You share 99 lives - deliver, don’t die, and make it count!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
73% of 426

A frantic co-op puzzle game where a Pilot and an Air Traffic Controller must communicate, decrypt, and improvise to save a failing aircraft. Talk fast, solve faster, and try not to crash.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
97% of 82

The town of Besmirch starves. Stave off the hunger as the latest farmhand in this survival horror farming sim, earning the trust of paranoid townsfolk under the thumb of the corrupt Baron. Tend to both your farm and the town while avoiding unholy terrors that come in the night.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
84% of 2,541

Eden Crafters is a solo or co-op open-world survival, crafting, and factory-building game where you transform a hostile planet into a habitable haven for humanity. Build, automate, and terraform. Control the climate, create a breathable atmosphere, and turn toxic lakes into water: shape a new world!

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

The Maw is hungry, you and your friends are the island's chosen heroes. Explore the deadly, mysterious island with your fellow islanders and loot for offerings to feed the beast before he gets angry!

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
75% of 9,091

Forge your legend in a forgotten realm! Farever is an online multiplayer action RPG set in a vast fantasy open world. Alone or with friends, embark on an epic journey together! Explore wild lands and dangerous dungeons, craft powerful gear, and carve your path through dynamic combat and platforming.

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
83% of 12

Sewer Raiders is a horror exploration puzzle game where players descend into massive underground tunnels, solve puzzles, scavenge loot, and flood the infested sewer. Every run is unpredictable, hidden paths, and dangers lurking in the dark.

If you loved these, you'll love this