Best online co-op games for 8+ players

Online co-op games on Steam with room for 8+ players, going by the player count on each game's store page. Games that don't say how many can play aren't included.

Showing 171–180 of 914 games matching 8+ players, best rated first · updated 13 Oct 2026

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Nienix: Cosmic Warfare

✓ Deck VerifiedCrossplay
$$
Released
Price
$$ · Standard
Players
👥 Up to 40 players
Reviews
87% of 338

Search for the legendary lost artifact Nienix through galaxies in conflict! An open world space action RPG adventure that can be played both alone and together!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 10 players
Reviews
90% of 108

Get ready to rage with your friends in this co-op precise platforming adventure! You're stuck in Hell. You can only jump upwards and all you have to do is escape … it can't be that hard, right?!

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Up to 64 players
Reviews
83% of 28,604

Multiplayer survival horror game based on stories from the SCP Foundation. The game is about a facility containing anomalous entities known as SCPs. When a catastrophic containment breach occurs at one of the facilities, it is your main goal to escape the facility. Try to escape with your friends!

If you loved these, you'll love this

GROUND BRANCH

Deck Playable
$$
Released
Price
$$ · Standard
Players
👥 Up to 8 players
Reviews
83% of 22,468

From one of the developers behind the original Rainbow Six® and Ghost Recon® games, comes a thinking-man's first-person shooter featuring in-depth character and weapon customization. Take your time. Think ahead. Get the job done.

If you loved these, you'll love this

Portal Mortal

Crossplay
−75%
$
Released
Price
$ · Cheap · On sale −75% until 19 Oct
Players
👥 Up to 33 players
Reviews
100% of 18

Portal Mortal is a hardcore 2D puzzle platformer spiced with blood and guts! Explore unique environments, face challenging obstacles and get creative. Play alone or have fun online with up to 32 friends and build your own levels together!

If you loved these, you'll love this

Slapshot: Rebound

Deck Playable
Free
Released
Price
Free
Players
👥 Up to 12 players
Reviews
83% of 14,154

Slapshot: Rebound is a physics-based multiplayer game where you play an arcade style match of hockey. No shoot button, no puck glue, no RNG. It’s up to you and your team to take control of the puck, pass, shoot, outplay your opponents. Play with your friends or team up with other Slapshot players!

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Up to 8 players
Reviews
96% of 30

In this top-down, multiplayer, co-op game, you must protect your Core Crystal by any means necessary. Build up your defenses, explore, refine, and upgrade to reach your goal. Play alone or with up to 8 people.

If you loved these, you'll love this

HALF DEAD 2

✓ Deck Verified
−50%
$
Released
Price
$ · Cheap · On sale −50% until 19 Oct
Players
👥 Up to 16 players
Reviews
84% of 1,851

Go through deadly rooms of multi-storey building. Team up with other players and make your way through traps with a friendly team (CO-OP)! Or take a weapon and kill them all in the PvP game mode!