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 551–560 of 1,516 games matching Action-Adventure, newest first · updated 13 Oct 2026

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

In Pixel Troopers you will fight against all kinds of insects, gather your friends and prepare to survive as long as possible, or face each other in a Deathmatch in this Cooperative Multiplayer game.

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Reviews
100% of 2

“Survive and rebuild on a mysterious island. Explore diverse biomes, battle zombies, craft, farm, trade, and harness electricity in this open-world sandbox adventure — alone or with friends.”

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

From an Indie developer in Sweden we bring you Stranded With Darkness. A base building tower-defense like game, with up to 4 player online CO-OP. Stranded on a desert like planet, gather resources during the day, defend the SOS transmitter during the night. Survive as many days as possible.

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System Shock 2: 25th Anniversary Remaster

✓ Deck VerifiedCrossplay
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Price
$$ · Standard
Players
👥 Not stated
Reviews
87% of 1,822

System Shock® 2: 25th Anniversary Remaster is a genre defining experience that established innovative game-play mechanics that are a staple of the FPS and RPG genre today. Survive the wretched corridors of the Von Braun. Your training has prepared you for this.

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Released
Price
$$ · Standard
Players
👥 2–4 players
Reviews
100% of 11

In this action-packed co-op adventure, 2-4 players must unite to crew a spaceship through a web of interconnected story missions. Choose your role—Captain, Pilot, Gunner, or Engineer—and make decisions that shape not only your journey, but the future of a galaxy on the brink of war.

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$ · Cheap
Players
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A competitive online multiplayer platformer where every jump is a gamble. Climb to the top while using strategic abilities to outsmart your opponents, but beware: one misstep can cost you all your progress.

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CashGrab: Refunded

Deck Playable
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Released
Price
$ · Cheap
Players
👥 Up to 6 players
Reviews
87% of 206

An online co-op horror game with up to 6 players. Use fully physics-based objects and fluid movement to grab some cash and escape The Grind. Use cash to buy items and equipment and fund community goals. Create your Grabba and get rich or die trying.

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Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
60% of 5

Start your journey in Cursor Ville, where you'll be tested in your precision, agility, patience, and determination! Will you be able make your ways through the treacherous world and save your beloved princess? YOU are the cursor! Aim, dodge, move, and most importantly, never give up!

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