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 31–40 of 352 games matching Mystery · updated 12 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 4–12 players
Reviews
50% of 6

A social-deduction card game for 4–12 players. Share one screen, keep roles and cards secret on phones, and play locally or connect remote groups through Steam.

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Free
Released
Price
Free
Players
👥 Up to 2 players
Reviews
0% of 1

Pair up with a friend to play as a Mechanic and Hacker duo. Infiltrate the facility, access security systems, uncover the organization's secrets and discover the truth to save the world!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
50% of 2

The Impostor doesn't just steal your appearance... it steals your voice. Complete objectives, craft Anti-Virus bullets, and uncover the Impostor in a facility with millions of possible map layouts. Kill the virus before it kills you. Single-player and multiplayer psychological horror.

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$
Released
Price
$ · Cheap
Players
👥 Not stated

Climb. Fall. Cry. A 3D platformer-adventure where gravity is your worst enemy. Explore a vertical world full of secrets, alone or with friends — help them, save them, or push them off. Reach paradise and eternal glory… if you don't fall first. Don't Fall!

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
16% of 12

A terrifying 1–4 player co-op horror game set in a cursed mansion. Use flashlights, find clues, and survive the horrors within. Every decision matters. Can you escape before the curse claims you?

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
65% of 23

A few logs, one harpoon, no land in sight. Pull driftwood from the sea and build your raft into a floating town, on your own or with friends you invite straight from Steam. Dive to the ocean floor. Raiders come at night, sharks circle, and somewhere out there, a leviathan is waiting.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 6 players
Reviews
78% of 182

A survival horror set in a massive maze. Play solo or 6-player co-op. Scavenge resources to craft gear and survive against terrifying enemies. Unlock unique abilities and find the exit.

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$$
Released
Price
$$ · Standard
Players
👥 1–4 players
Reviews
87% of 478

the cabin game is a 1-4 player, chaotic horror game where you are trapped inside a cabin and the only way out is through a game of cards. Just beware, as the cards you play have a surprising twist on this humble abode...

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