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 831–840 of 1,516 games matching Action-Adventure, newest first · updated 13 Oct 2026

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IsoCraft Story

Crossplay
$
Released
Price
$ · Cheap
Players
👥 Not stated

Isocraft Story is an isometric Minecraft-like sandbox game. Shape the infinite and procedurally-generated block world. Collect materials, play online, advance to higher tiers of tools and weapons, go deeper into the world and build a new spaceship to escape from this planet!

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Dawn of Defiance

Deck Playable
−40%
$$
Released
Price
$$ · Standard · On sale −40% until 22 Oct
Players
👥 Up to 4 players
Reviews
76% of 1,757

Become a Spartan in this Greek myth survival adventure, solo or with up to 3 friends. Explore a realm at the edge of the Underworld, fight mythical beasts, gather resources, craft powerful gear & build grand palaces. Raid ancient temples, seize the iconic weapons of the Olympians, and defy the gods.

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
0% of 1

Embark on an epic journey of survival and adventure alone or with up to 4 players online. Cultivate crops, trade for upgrades, and battle your way through the dense forest to uncover the mysterious maze and its secrets. But be vigilant, for danger lurks where least expected.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
74% of 27

Journey with your friends in the free to play world of Ferromon Together and take on the 10 towers with over 140 Ferromon to save the world's inhabitants from the Tainted!

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Frog

Deck Playable
Free
Released
Price
Free
Players
👥 Not stated
Reviews
65% of 140

Frog isn't just another low effort clicker game, We're committed to creating an experience that the community loves. We regularly add new features and frogs based on community feedback, ensuring that the game continues to evolve and stay exciting. Frog is built to stay for the long run!

Free
Released
Price
Free
Players
👥 Not stated
Reviews
54% of 434

"Ghostbane: Prologue" is a multiplayer horror game that you can play with your friends. Detect paranormal activity, collect evidence of ghosts, hunt ghosts by rituals, and conduct detailed investigations about ghosts in your main base.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
45% of 24

Solo or CO-OP with friends, survive the siege and keep your vessel afloat in “SHARK SIEGE - TOGETHER SURVIVAL” where the deep blue sea is your adversary, and courage is your strongest ally. Join the voyage, if you dare!

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
63% of 36

A non-linear action-adventure heist game with destructible buildings, use stolen loot to buy bigger explosives and access higher value loot. Buy and customize cars. Invest in military equipment such as helicopters and tanks. Get your mansion!

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
60% of 5

Dimensional Phobos Threat You are trapped in a cursed place in this horror investigation game for 1 to 4 players that you can play with your friends. The only way to lift the curse is to search the place and find and destroy the cursed items according to the clues

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