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 2921–2930 of 3,108 games matching 4 players, best rated first · updated 13 Oct 2026

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Free
Released
Price
Free
Players
👥 Up to 4 players
Reviews
0% of 2

A free co-op automation game where you and up to 3 friends grow a living mycelial network across an alien planet. Consume local creatures, build biological production chains, and evolve from a tiny spore into a cosmic entity together.

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$
Released
Price
$ · Cheap
Players
👥 2–4 players
Reviews
0% of 1

Can you and your friends survive this VR puzzle adventure? You'll have to think fast, communicate well and dodge traps to solve your way to victory! Keep your eyes peeled, your brains engaged and your upper lips stiff! This world is Hazard Us!

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players

Top-down shooter inspired by 90s arcade games. You and up to three friends play as four mercenaries as they descend into the Epsilon 9 bunker. Navigate 70+ handcrafted labyrinthine levels, purchase upgrades, and destroy chaos manifest: The Machine.

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players

Resurrection is a wave-based indie FPS by Bad Dev Studios. Fight endless, aggressive zombie hordes in a burning city. spend points at the random weapon box for better firearms, manage your ammo, and use precision sniping to survive increasingly difficult waves.

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$
Released
Price
$ · Cheap
Players
👥 Up to 6 players
Reviews
0% of 2

A real-time fantasy tower defense where adjacency matters. Master 12 magic schools, blend them through 66 unique synergies, and defend across 21 distinct maps. 144 tower variants, deep upgrade trees, endless wave escalation. Play solo or in online co-op.

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$
Released
Price
$ · Cheap
Players
👥 Up to 5 players

In a fantastic universe, form a group of up to 5 dwarves. Choose a class then set off on an adventure in mines. Be careful, one of you will have become a monster, born to hunt you. Your goal is to extract materials there. Survive by working as a team but also using many gameplay features

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players

Co-op or solo sci-fi horror. Purge a biological outbreak with flamethrowers & grenades. Explore infested zones, grab keycards & stuff, then trigger the protocol to burn the Mother Organism. Team up. Erase the threat

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Horde Beyond

Crossplay
$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players

Answer the call to fight the HORDE! Master full fast-paced tactical space combat with dynamic missions, coordinated enemy squadrons, fantastical weapons and deep ship upgrades. Fight through hostile space in with battlefield hazards, adaptive enemies, alone, in co-op or bots with up to 4 players!

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