Online co-op Mystery Dungeon games

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

Showing 61–62 of 62 games matching Mystery Dungeon · updated 12 Oct 2026

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Haunted Investigation on Steam View on Steam ↗

Haunted Investigation

$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
83% of 209

Haunted Investigation is a spine-tingling horror game that will test your nerves and keep you on the edge of your seat. Whether you choose to play alone or with another friend (up to 2 players), you'll be immersed in a world of terror and suspense as you explore an abandoned mansion.

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Hammerwatch II on Steam View on Steam ↗

Hammerwatch II

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
60% of 1,872

Gather your heroes and journey beyond the dungeons of Castle Hammerwatch to explore a pixelated world like never before. Aid King Roland’s resistance while helping villagers along the way. Battle beasts, finish off hordes of the undead, and face the forces of evil.

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