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 2511–2520 of 3,117 games matching 4 players, best rated first · updated 14 Oct 2026

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Price
$ · Cheap
Players
👥 1–4 players
Reviews
100% of 1

Catnip Wars is a 1–4 player co-op tower defense. Play as scrappy Catbots defending your catnip farm from monster waves — build and power turrets, raise walls, harvest resources, man the BFG, revive fallen friends, and climb the tech tree. Play solo or online with friends. Achievements/Leaderboard

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Players
👥 1–8 players
Reviews
100% of 1

IRONVALE is a survival-crafting roguelike for 1–8 players. Gameplay is split into a day/night cycle, where crafting, resource gathering, and building primarily happen during the day -- but at night, swarms of enemies attack the player and they must fight to survive.

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Released
Price
$ · Cheap
Players
👥 2–8 players
Reviews
100% of 1

Stack Mates is a co-op puzzle-platformer for 2-8 players built on teamwork and pure chaos. Shift your form between horizontal and vertical, climb on your friends, and reach the portal together. Remember, if even one person fails, everyone starts over!

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$ · Cheap
Players
👥 2–4 players
Reviews
100% of 1

Dig deep with friends. Share one shaft, one wallet, one goal: go deeper. Mine ore, build your way down with ladders, platforms and elevators, and keep the lights burning. The dark is patient, the gas is not. Something hums at the bottom. Just one more layer…

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Players
👥 Up to 8 players
Reviews
100% of 1

Grimm Work is an 8 player co-op horror game where you seek to balance the scales of chaos and order. Fight, hide, or run from a catalogue of monsters from mythologies and folklore around the world in procedurally generated maps. Will you tip the scales towards order or succumb to chaos?

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$ · Cheap
Players
👥 Up to 20 players
Reviews
100% of 1

Ridiculous on the outside, deadly serious in combat. A chaotic co-op 3D action game for up to 20 players. Fight through absurd enemies, giant weapons, and screen-filling chaos using 8 unique attacks and deep customization.

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$ · Cheap
Players
👥 2–8 players
Reviews
100% of 1

Broken Crown is a fantasy RTS where you build a settlement, gather resources, research powerful upgrades, and command hundreds of units in formation-based battles. Advance troops through five visual tiers, preserve Bronze-to-Gold veterans, and conquer tactical maps shaped by Fog of War.

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$$ · Standard
Players
👥 Up to 5 players
Reviews
100% of 1

Robotic warrior of a mysterious army, you are now stranded on a world unknown. Alone or with other survivors of your battalion, lead a ruthless guerilla and take part in the reconquest of an entire planet. A cooperative experience for up to 5 players.

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