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 1131–1140 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
👥 3–8 players
Reviews
80% of 10

Strange Town is a very enjoyable multiplayer survival game with a role-playing theme. The game can be played with 3-8 players. In the discussion phase, try to find out who the Werewolf is, and in the anger phase, try to survive! The traitor among you will appear as the Werewolf!

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Not stated
Reviews
69% of 13

Command the Emerald Goblin Army and win the Great Gold War. Master Campaign Battes across 20 unique and increasingly difficult levels. Relax with a fun Mini-Game. Battle and play with your friends in Multiplayer Lobbies and Arenas (Multiplayer Beta Available Now)

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
88% of 9

This is a decryption adventure game, need to explore every tomb, as far as possible to find clues to go out, the darkness is indispensable is the source of fire, ensure the transmission of fire, you can have the opportunity to go out.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
76% of 21

SourceWorlds is a co-op action-adventure game that throws you into the strange world of the 'Architect'. Solve quests, loot items, defeat enemies, explore the world with your friends or sucker punch them in the PvP arena.

If you loved these, you'll love this

PolyShot

Deck Playable
$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
86% of 23

E-Girls group was born as anti-male groups came together. This cute but wild girl group aims to take over the BoyZ clan and create chaos across Polylandia to enforce their will. We need to stop them!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 1

You can play with many people with a map made with the map editor and share the created map. You can set up individual or team battles and become a team together to catch monsters, escape mazes, or fight each other. Create a map using the map editor in World of Mana and enjoy it together.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
60% of 23

Welcome to the world of Infinimine! Start with a basic pickaxe and upgrade your gear as you mine your way deeper into the abyss. Mine an assortment of ores with your guildies as a party or solo to level up your guild for buffs as well as unlocking other mining classes..

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 3 players
Reviews
42% of 7

Capture, train, and fuse together minions into your ultimate weapon against foes and the gym leaders of Seabrook. Become the resident Monster Expert and collect them all!

If you loved these, you'll love this