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 161–170 of 352 games matching Mystery · updated 12 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 Up to 8 players
Reviews
92% of 4,525

Sequel to the best-selling escape room game, brings a fresh take on first-person puzzles with a variety of new rooms to explore solo or with friends. Solve intricate puzzles, uncover hidden secrets, or craft your own escape rooms with Room Editor 2.0.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
55% of 34

Backrooms: Facility Unknown - Is a co-op horror game about exploration of dangerous liminal spaces. Wander around the complex alone or with friends. In any case, your task is to do your job and survive.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
33% of 6

DEVOSE is a cooperative horror game for 1 to 4 players. Explore, find proofs and survive. Every corridor is a trap. Every noise can betray you. Coordinate or die alone.

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Free
Released
Price
Free
Players
👥 Up to 2 players
Reviews
89% of 182

🐱 Discover 100 hidden cats 🌍 in handcrafted scenes that capture the spirit of each country. Relax with color-by-numbers 🎨 and bring illustrations to life. Play solo or in cozy co-op 👯‍♂️, while Meow FM 🎶 sets the mood.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
81% of 3,508

Dark Hours is a co-op survival horror game for 1-4 players. Your heist has been disrupted by a supernatural event, and your team of robbers is now trapped with an evil entity. Forget your plan, your mission is to survive. Explore and cooperate to find a way out.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
95% of 98

Check the suspect's status and solve the mystery! A status-checking mystery ADV in which a rookie detective takes on difficult cases that take place in a fantasy world.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
42% of 85

Crack the Mystery Together! "Lateral Thinking Together" is a cooperative and competitive online multiplayer game that challenges your knowledge and deductive reasoning to uncover the truth. Solve incomprehensible stories with creative thinking and flashes of insight!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
81% of 777

An online co-op horror game featuring unique playable characters and RPG mechanics. Exorcise ghosts using your special abilities and tools while surviving the supernatural onslaught

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
52% of 46

Cooperative survival and horror genre. You and your family have returned to your native land, on which a terrible curse and darkness has fallen. Will you be able to survive in a harsh and dangerous environment and stop the evil? It depends only on you, on your skills and ability to help each other.

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