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 851–860 of 1,516 games matching Action-Adventure, newest first · updated 13 Oct 2026

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Errships

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

Join forces with friends in Errships, a cooperative adventure where you construct epic flying contraptions and conquer escalating challenges. Unite with teamwork and defy the enigmatic tower to keep your scrap-filled vessel soaring high in the open skies.

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Descending The Woods

Deck Playable
$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
47% of 113

By day, tend to your farm, care for your pets, and explore the mysteries of the haunted woods. By nightfall, They will come from the woods, Beware of ghosts and demons of the haunted woods. Hide, Survive, Build, Fight and Explore in this eerie Survival Horror alone or with friends.

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Chronocide

Deck Playable
$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
100% of 3

Chronocide is a chaotic co-op action trap defense game where you and your friends use weapons and cleverly positioned physics-based traps to stop endless undead hordes. Shoot, burn, crush, throw, impale, poison, and freeze anything that gets too close. Play solo or with up to 3 other players.

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Carrion Fields

Deck Playable
Free
Released
Price
Free
Players
👥 Not stated
Reviews
71% of 64

A completely free online multiplayer text-based RPG game. No pay to win, no pay for perks, COMPLETELY free. Experience roleplay, PvP, PvE, and more in a vast fantasy world with in-depth history. Enjoy 21 races and 17 classes in an ever-evolving world.

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Free
Released
Price
Free
Players
👥 1–4 players
Reviews
37% of 88

Mortuar is a 1-4 player Online co-op psychological horror game. Delve deep into Hoia Baciu Forest where eerie sightings and paranormal activity have transpired. Make use of various ghost hunting equipment to first identify the ghost's type, then attempt to banish it back to the afterlife.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
66% of 3

"Zombie World War: New World" is a shooter where players and three AI teammates battle a massive zombie invasion. They must cooperate using skills and strategies to survive and defeat mutants. Intense combat with high-quality graphics and PBR materials providing a visually stunning experience.

Incursion2D

Deck Playable
Free
Released
Price
Free
Players
👥 Not stated
Reviews
80% of 26

A fast paced action RPG where you will fight increasingly difficult waves of enemies, each with unique abilities! You will be fighting various bosses, work on your secondary skills, collect cosmetics for your character and work on your very own island!

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−65%
$
Released
Price
$ · Cheap · On sale −65% until 19 Oct
Players
👥 Not stated
Reviews
0% of 1

Online co-op dystopian casual shooter game with some cyberpunk wibe that has some plot in it. A few quest lines that can be completed solo or with friends.

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