Online co-op Action-Adventure games

Every online co-op Action-Adventure game on Steam we know of, newest first. Add tags or a price band to narrow it down.

Showing 91–100 of 1,095 games matching Action-Adventure · updated 12 Oct 2026

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
65% of 91

AbysOrbit a FREE, real-time space MMO played directly in your browser! Choose one of three factions, upgrade your ship, build your clan, and enter massive PvP battles for control of the galaxy. Auctions, Galaxy Gate, missions, and much more await youClaim your place before the universe is conquered

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
80% of 21

Bard’s Fault is a co-op Action Roguelike where you and your friends fight back-to-back against relentless swarms. Craft new builds, sync your abilities, and break the timeline in this multiplayer bullet heaven. Death is just the beginning, go back to the past and unravel a time-travel mystery.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
51% of 109

Western Rye is an open world survival crafting adventure game set in the old west American Frontier. Create your dream outlaw! Survive the the wild west, farm, build your ranch, endure the weather, fight and forge your legend with friends or alone. In Western Rye, the wild west just got wilder!

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$
Released
Price
$ · Cheap
Players
👥 1–8 players
Reviews
100% of 1

IRONVALE is a survival-crafting roguelike for 1–8 players. Gameplay is split into a day/night cycle, where crafting, resource gathering, and building primarily happen during the day -- but at night, swarms of enemies attack the player and they must fight to survive.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
31% of 185

Punch, kick, push and race your way to the top in this chaotic multiplayer party game. Outsmart obstacles, team up when it helps, or betray your rivals. In Galumb, there are no rules.

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$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
90% of 20

An online co-op game where you and your friends play greedy gobblins invading human houses to steal and gobble loot. Climb, stretch, and manage your stamina to survive chaotic heists and feed your Gobblin King.

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$
Released
Price
$ · Cheap
Players
👥 Up to 6 players
Reviews
80% of 5

A 6-player co-op horror game where you loot valuable relics from nuclear wastelands to satisfy the perfect AI, KUT-ANA. Survive deadly anomalies and evacuate before you’re recycled.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
16% of 6

Entity Research Group — a cooperative first-person horror game where you become part of a special unit investigating highly dangerous anomalous entities. Collect evidence and samples, complete technical objectives, and survive within the ever-changing Backrooms clusters.

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
80% of 67

A co-op horror game where you are part of a crew sheltering in a collapsed tunnel, scavenging loot across maps filled with deadly creatures born from a biological war. Feed the creature, convert its waste into fuel, and reach the radio tower

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