Best 4-player online co-op games

Online co-op games on Steam with room for 4 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 1661–1670 of 3,124 games matching 4 players, best rated first · updated 15 Oct 2026

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Save Your Nuts

Crossplay
$
Released
Price
$ · Cheap
Players
👥 1–8 players
Reviews
75% of 28

Go nuts in this insane 1 to 8 players chaotic arena party game. Put your cooperation skills to the test over intense physics-based battles mixing competitive online games and casual offline modes..

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Inside the Labs

Deck Playable
$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
68% of 73

Inside the Labs is a 1-4 player online co-op survival horror game. Take on the role of teenage explorers as you venture into abandoned labs, following reports of failed human experiments.

If you loved these, you'll love this

−20%
$
Released
Price
$ · Cheap · On sale −20% until 28 Oct
Players
👥 4–8 players
Reviews
100% of 5

A 4-8 player social deduction horror game. Solve puzzles that need real teamwork, survive monsters that each hunt differently, and figure out who you can trust before they decide for you.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
100% of 5

A cooperative action game where up to 4 players battle through themed arenas, dodge deadly attacks, upgrade unique abilities, acquire loot, and survive raid-style encounters in fast paced combat.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
100% of 5

Play Texas Hold’em and Short Deck with up to 10 players online. Create private rooms, invite Steam friends, or join by room code. Features include AI players, Infinite Squid, multiple All-in runouts, and real-time hand analysis. Virtual chips only, with no IAP or real-money gambling.

Problematic

Crossplay
$
Released
Price
$ · Cheap
Players
👥 2–6 players
Reviews
100% of 5

Problematic is a gothic party game where someone always goes too far. Gather your friends, judge cursed answers, betray alliances, and turn every match into a beautifully organized disaster. Wield chaotic power-ups, survive secret rules, and steal the win by any means necessary.

$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
100% of 5

Mumagi: Stellar Saviors is a challenging co-op bullet heaven where you can gather up to 4 players to take down celestial forces. Choose a magical girl, enhance your powers, and restore time and space to their natural order!

If you loved these, you'll love this