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 2901–2910 of 3,108 games matching 4 players, best rated first · updated 13 Oct 2026

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Players
👥 Up to 6 players

Co-op first-person horror for up to 6 players. Explore a living maze that reshapes itself, activate altars to unlock the exit, and revive your allies before it's too late. Use your flashlight to see the creatures, but light and noise draw whatever hunts you in the dark.

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👥 1–4 players
Reviews
0% of 2

Backrooms: The Wrong Reality is a cooperative psychological horror game for 1–4 players. Explore a distorted and hostile reality alone or with friends as you search for answers, avoid what lurks in the dark, and struggle to survive a place that should not exist.

Singulier

Crossplay
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👥 Up to 100 players

The party game where you must NEVER say the same thing as everyone else. Find the answer no one dares to give and survive, up to 100 players in Battle Royale ! One friend buys it, the whole table plays FREE from their browser. Built for streaming.

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Players
👥 1–4 players

Subsurface is a 1–4 player co-op underwater horror game. Explore abandoned facilities, scavenge valuable loot, and survive eight terrifying monsters while racing against your oxygen supply. Meet your quota, escape the depths, and try not to leave your friends behind.

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Players
👥 1–4 players
Reviews
0% of 1

Run your own hotel — solo or in 1–4 player online co-op. Check guests in, cook and serve, run the spa and pool, hire staff, and upgrade your rooms from Standard to Luxury... before it all spirals into glorious chaos.

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Players
👥 Up to 4 players

Climb out of a shifting liminal facility where reality changes by phase. Calibrate unstable nodes, manage light and sanity, evade distinct anomalous threats, and reach extraction alone or with your crew.

If you loved these, you'll love this

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$ · Cheap
Players
👥 Up to 4 players

Read visible enemy AI and plan tactics in a turn-based tactical RPG set in Toyoashihara, where steam firearms coexist with swords and spears. Features AP-based turn order, token actions, and body-part conditions. Invite Steam friends for online co-op up to 4. Japanese only; English planned.