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 1191–1200 of 1,516 games matching Action-Adventure, newest first · updated 13 Oct 2026

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Gotham Knights

✓ Deck Verified
$$$
Released
Price
$$$ · Expensive
Players
👥 Not stated
Reviews
68% of 15,721

Batman is dead. It is now up to the Batman Family - Batgirl, Nightwing, Red Hood, and Robin - to protect Gotham City.

Tower of Fantasy

Deck PlayableCrossplay
Free
Released
Price
Free
Players
👥 Not stated
Reviews
66% of 12,069

Embark together on your fantasy adventure! Set hundreds of years in the future on the distant planet of Aida, the shared open-world RPG, anime-infused sci-fi adventure Tower of Fantasy now is officially available on Steam.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
87% of 2,594

From the developers of the Guns, Gore and Cannoli franchise comes a new 2D run & gun platformer: Warhammer 40,000: Shootas, Blood & TEEF! Spearhead an Ork invasion, destroy the hive city and kill your warboss! ‘Ere we go!

If you loved these, you'll love this

−70%
$$
Released
Price
$$ · Standard · On sale −70% until 16 Oct
Players
👥 Not stated
Reviews
78% of 2,041

The Last Hero of Nostalgaia is a satirical action-adventure, brought to life by a twisted and wicked tale. Featuring hard but fair combat, *full character customization, unique battle armor and engaging narrative mechanics rich in lore, Nostalgaia plunges you into almost certain death at every turn.

If you loved these, you'll love this

Oathbreakers

Crossplay
Not listed
Released
Price
Not listed
Players
👥 Not stated
Reviews
64% of 28

Oathbreakers is a multiplayer fantasy VR RPG that incorporates a unique blend of strategic precision-based realtime action combat, with unrestricted player vs player competitiveness, in a relaxing survival RPG themed environment.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 1–6 players
Reviews
88% of 42,998

A visually lifelike co-op horror game for 1-6 people. Journey through 11 procedurally generated levels, using what's available to survive and progress deeper into the Backrooms.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
94% of 34

You’re a magical cat on Halloween night, and the town is being overrun by monsters. You could save everyone or unleash chao by sprint in circles, knock stuff over, steal candy, and cast magic . Play solo or with friends.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
40% of 22

An alien creature is loose on your spaceship and it’s out for blood. Run, hide, use the resources at your disposal and work with your fellow crew members to get off the ship before it’s too late.

If you loved these, you'll love this