Online co-op Mystery games

Every online co-op Mystery game on Steam we know of, newest first. Add tags or a price band to narrow it down.

Showing 1–10 of 352 games matching Mystery · updated 12 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 Not stated

🐱 Discover 500 hidden cats across 5 artistic hand-drawn scenes 🖌️. Relax with color-by-numbers 🎨 and add life to every detail. Play solo or in cozy co-op 👯‍♂️, while Meow FM 🎶 sets the perfect creative mood.

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$
Released
Price
$ · Cheap
Players
👥 Not stated

Traitor is a multiplayer social thriller based on suspicion and strategy. Players assume roles, gain trust, cooperate... until someone betrays them. In each round, one is the secret killer and the others try to survive. Observe, interrogate, gather evidence and uncover the real killer.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 5

Catch The Fish is a chaotic fishing action-adventure where your catch fights back. Cast into lava, battle aggressive fish and powerful bosses, feed monstrous traders, and upgrade your weapons as you sail across seven strange and dangerous islands.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players

VHS Tapes is a 1-4 player, online co-op horror. Experience a collection of mysterious video tapes, each one containing completely different stories, locations, puzzles and nightmares to endure. INSERT. PRESS PLAY.

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Free
Released
Price
Free
Players
👥 Not stated

Murder Mystery games created by HIROYU through the two production circles, “TriEmoStab” and “IBAHIRO”, are now available to play on Steam. ※This is a dedicated tool for playing Murder Mystery games online.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 6 players
Reviews
95% of 422

A co-op survival horror game about a cursed board game. Play in a group of 6 players. Roll the dice, survive the horrors that are summoned, and beat the Gamemaster to win your freedom.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
100% of 10

One hears your voice. One only moves when you look away. One doesn't follow rules at all. The playground is open. Bring friends. 1-4 player co-op horror.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
70% of 10

Sinever: The First Seal is a 1–4 player co-op psychological horror game. Explore an isolated Victorian estate, operate paranormal equipment, manage your sanity, and uncover the truth behind its imprisoned entity before the house claims you too.

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$
Released
Price
$ · Cheap
Players
👥 Not stated

Run a co-op night shift at a roadside gas station. Fuel cars, run the register, repair vehicles, stop thieves, and investigate suspicious customers before the night gets out of control.

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