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 111–120 of 352 games matching Mystery · updated 12 Oct 2026

Filters: Mystery × Clear all
$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
100% of 4

Co-op first-person horror for 1–4 players. You and your friends are trapped in endless liminal backrooms where nothing makes sense. Explore, find keys and almond water, and work together to evade unstoppable monsters and escape.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 5 players
Reviews
62% of 8

It's simple. Operate your submarine through challenging tight cave systems to collect the target, while not scratching the cave walls under suboptimal conditions. Navigate carefully and consider every move in this slow pace, athmospheric, multiplayer, submarine simulation-lite.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 3–8 players
Reviews
0% of 1

Stranded with your friends—but one of you is a killer. A first-person social deduction survival horror game. Chop wood to stay warm, hunt animals for food, retrieve artifacts for sacrifice, and expose the killer before it’s too late. 3–8 players, short matches, proximity voice chat.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
100% of 21

In this (up to) two-player stealth horror game, you are trapped in an haunted Austrian hotel inhabited by a Percht and other creatures from alpine folklore. You must work together, solve puzzles and avoid detection to escape the hotel alive.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 1–6 players
Reviews
0% of 2

Co-op horror for 1–6 players. Complete high-risk tasks in a vast shopping mall while evading relentless monsters. Hold the security room - or push out and make it back alive.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 1–4 players
Reviews
100% of 2

PVE CO-OP horror survival game for 1-4 players in the cursed lands. Eternal night rules the world, demons rise from molten abysses, and darkness devours mankind. Only the Sun Cult guards the last light. You are the pilgrim-monk who must gather crystals and bring back the Sun.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
64% of 1,055

A supernatural game infused with Chinese-style elements drawn from folklore. This game offers online gameplay for teams of up to 4 players. In a world ravaged by warlords and monsters, you will assume the role of a Taoist, wielding your skills to unveil truths hidden for millennia.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
87% of 299

Grenades are holy relics. Shotguns are spellcraft. In this top-down survival action-RPG, discover a fantasy realm invaded by modern world and destroy nearly everything. Scavenge artifacts, forge weapons, build outposts, brew potions, and hunt the corruption devouring the land. Play solo or co-op.

If you loved these, you'll love this