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 141–150 of 352 games matching Mystery · updated 12 Oct 2026

Filters: Mystery × Clear all
Free
Released
Price
Free
Players
👥 Up to 2 players
Reviews
91% of 174

🐱 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.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
40% of 5

Backrooms: The True Level is a cooperative horror game for 1–4 players. Together or alone, you will explore this level trying to understand whether it is real, but can the darkness in this world be peaceful?

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Up to 2 players
Reviews
89% of 195

🐱 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.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 2 players
Reviews
93% of 29

Puzzle Parasite is a sci-fi puzzle adventure where you wield telekinetic powers and a cricket bat. You send energy cores flying, power alien tech, and avoid deadly lasers, as you go deeper to uncover the hidden secrets. A handcrafted tribute to the classics that made us think in new ways.

If you loved these, you'll love this

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

Liturge is a cooperative investigative horror game for 1-4 players. A team of LRI Operators investigates haunted locations, gathers paranormal evidence, and identifies the entity responsible for the activity.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 2–6 players
Reviews
21% of 14

Solve online cases with 2–6 players: investigate scenes, track leads, compare notes, and piece together the truth in Red Chair where misdirection is real, but evidence wins.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 4–12 players
Reviews
91% of 5,282

Welcome to Feign, an intriguing role-based game that blends mystery, strategy, and deception. Step into a quirky, small town where Innocents, Impostors, and Neutrals navigate suspenseful gameplay. Your mission unfolds under the cover of night - then it's up to the village by day to vote someone out!

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 1

A co-op, text- and audio-driven collection of stories. Lead expeditions into uncharted cold waters, hiding a presence older than the Earth. Coordinate via proximity voice chat. More stories come after the release.

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Up to 2 players
Reviews
90% of 199

🐱 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.

If you loved these, you'll love this