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 541–550 of 1,516 games matching Action-Adventure, newest first · updated 13 Oct 2026

Filters: Action-Adventure × Clear all
Filter by tag, price, players or reviews
$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
47% of 1,387

The Fate of The Forgotten Realms is in Your Hands. Return to the city of Neverwinter in Dungeons & Dragons Neverwinter Nights 2: Enhanced Edition.

$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
28% of 7

An online co-op horror RPG where you run a ghost-hunting agency. Explore haunted locations, uncover the nature of entities, upgrade your skills and tools, and survive their curses.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
100% of 3

Return to Newton once more — The mission to deliver the apple begins again. This time, the game supports online multiplayer for up to 8 players. Work together with friends to reach the goal.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated

Grandpa's garden is invaded by strange creatures, and you go to investigate. You can help each other with your friends, collect props, upgrade skills, and repel powerful enemies. You can also turn into a cat, escape the war, and sleep lazily at home every day.

If you loved these, you'll love this

Not listed
Released
Price
Not listed
Players
👥 Not stated
Reviews
50% of 2

IlhaZ is an online survival game set in a post-apocalyptic archipelago. Survive against zombies, hunger, and harsh weather while interacting with other players in a brutal open world.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
69% of 59

Do you have the Big Dig Energy!? The best co-op mining game with online multiplayer for up to 4 players! Team up, dig deep, mine energy ore, and upgrade your tools. Reach the planets core to fuel the rocket and leave Earth!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
0% of 2

"Drone: Modern Warfare" is a tactical simulation shooting game where players control various types of drones to execute reconnaissance and strike missions.The game realistically simulating the use of drones and AI technology in modern warfare, delivering an intense and thrilling combat experience.

Free
Released
Price
Free
Players
👥 Not stated
Reviews
79% of 4,150

Survive the chaos of SCP Foundation! Step into a thrilling SCP horror experience with story-driven co-op, intense PvP Breach mode, and randomized maps. Play as Class-D, scientist, SCPs, and more, each role bringing unique challenges in an unpredictable, immersive facility.

If you loved these, you'll love this