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 341–350 of 1,513 games matching Action-Adventure, newest first · updated 13 Oct 2026

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👥 Not stated
Reviews
0% of 2

OutBreak: The Last Survivor is a brutal open-world multiplayer survival game. Team up with your friends to explore a post-apocalyptic environment, scavenge for loot, and build your ultimate base. Face off against the infected and rival players. Survive at all costs!

Towerborne

✓ Deck Verified
$$
Released
Price
$$ · Standard
Players
👥 Up to 3 players
Reviews
69% of 1,058

Towerborne is an exciting side-scrolling Action RPG Brawler. As an immortal warrior journey across a crumbling world, uncover the mystery of the fallen City of Numbers, and push back the corruption threatening humanity’s survival.

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Nested Lands

Crossplay
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Price
$$ · Standard
Players
👥 Not stated
Reviews
73% of 506

Nested Lands is a ruthless medieval RPG game featuring in-depth village building, large-scale social management and combats. Gather survivors, build a settlement, craft, master your skills, survive, and endure alone or in online co-op.

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Players
👥 Not stated
Reviews
100% of 1

CaveVox — the ONLY first-person voxel roguelike with permadeath. Live as your character: descend into a deadly dungeon, fight monsters, gain loot, and return to the surface for your next descent. Each expedition is unique — solo or with a party of adventurers, your choices shape your journey.

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Released
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$ · Cheap
Players
👥 Not stated
Reviews
78% of 105

An indie Online RPG game set in an open world from a solo developer. Create your own character, immerse yourself in an exciting story, engage in various activities: from fishing and farming, to managing industries and cities.

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Released
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$ · Cheap
Players
👥 2–4 players
Reviews
36% of 11

Backrooms: Not Escape is a multiplayer horror game for 4 players with interesting mechanics that will allow you to have fun with your friends. Never enter the backrooms alone. Explore them and find a way out, but there is no guarantee that it exists.

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Released
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$ · Cheap
Players
👥 1–4 players
Reviews
100% of 3

PC Building Nightmare is a singleplayer and co-op horror survival game for 1-4 players. Before the RAM crisis hits, carry the computer parts you found cheaply for your internet cafe and build the PCs. Get the job done and just don't get caught by the obsessive governess!

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Released
Price
$ · Cheap
Players
👥 5–10 players
Reviews
100% of 6

ClusterCluck is a chaotic murder mystery game where not everyone is what they seem. Collect clues, complete tasks, deceive others and talk your way to safety. Whether hunting as a fox or surviving as a chicken, every player has unique skills that can change the game. Trust no one… and cluck wisely.

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