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 731–740 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
$ · Cheap
Players
👥 Not stated
Reviews
50% of 2

Arobynn is a VR Adventure game in development. Help it grow by sharing it with your community and sharing feedback with the developer. It takes inspiration from adventure anime and is developing to include a great combat system and supportive casual occupations.

If you loved these, you'll love this

Blade of God X: Orisols

Deck Playable
Free
Released
Price
Free
Players
👥 Not stated
Reviews
72% of 516

BOGX emerges from the shadows as a captivating dark-themed Action RPG, marking a thrilling continuation of the Blade of God saga. From Game, Beyond Game. Inheritor, the gods lie vanquished in twilight— You stand as the last sentinel.

If you loved these, you'll love this

Murky Divers

✓ Deck Verified
$
Released
Price
$ · Cheap
Players
👥 5–8 players
Reviews
87% of 3,993

Solo or up to 8 players. Get rid of your employer's failed experiments in abandoned underwater labs. Navigate your submarine, avoid abyssal terrors, and remove all corpses.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
0% of 1

Demon Countdown is a Bullet Hell roguelike where hordes of Demons lurk in waves from hell, Kill all’em while sun is brightness… Every map is unique, and you can Play coop with your friends. Buy Skill boost Temporal! Will you be able to survive Before nightfall?

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
90% of 11,776

Zort is an action, adventure, and horror game that can be played with up to 4 people. Explore maps with your friends and have fun while escaping from various creatures. Experience a realistic horror experience with in-game voice chat with your friends!

If you loved these, you'll love this

Spire Horizon Online

Deck PlayableCrossplay
$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
64% of 343

Spire Horizon Online is an MMORPG where players become skeleton adventurers on a quest to find their capybara friend. Choose from a variety of classes, battle numerous monsters, and explore diverse regions.

Split Brain

Deck Playable
$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
92% of 167

Share the same body with a friend in Split Brain. One of you controls, the other one sees, but the decisions are made together! Face the illusion and uncover the truth to find your way out of Hexarture.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated

Doombreaker is a fast-paced hack-and-slash adventure. Explore a procedurally generated world, delivered to you in radiant 2D pixel art. Build your hero and fight evil, as the story is brought to life with full voice acting.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 3

Kill Me If You Can: Multiplayer Edition is an RPG and construction-based zombie survival defense game. Explore by day to gather resources and grow, then build defenses at night to hold back zombie hordes. Each character has unique skills, and you can control multiple characters during gameplay.

If you loved these, you'll love this