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 21–30 of 62 games matching Mystery Dungeon · updated 12 Oct 2026

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$ · Cheap
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👥 Not stated
Reviews
33% of 15

DEEPLY is an underwater adventure about treasure hunting, gear upgrading, and exploring a mysterious ocean. Dive off your raft, gather resources, discover artifacts, upgrade your equipment, and gradually get closer to the legendary ship your father devoted his life to.

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$ · Cheap
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👥 Not stated
Reviews
0% of 2

One, Two, Death is a co-op psychological horror where you wake up in a mansion with one other person. Trust your partner to escape together — or betray them to earn your own freedom, while a sadistic creature watches every move.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
80% of 26

A Japanese-style horror game for 1 to 4 players set in randomly generated residential neighborhoods. Explore a dangerous otherworld haunted by yokai, seal the supernatural phenomena that occur, and aim for escape. Experience replayable terror and tension with your friends.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
60% of 48

PlaneShift is a Role Playing Game immersed into a 3D virtual fantasy world! A medieval world, with many cities to explore, monsters to fight, weapons and equipment to find and craft. A skill based progression system, magic and many quests.

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60% of 10

Planet Hoarders is a co-op game where you collect cute creatures to meet your quota in dark dungeons… and hide from the not-so-cute ones. You’re a replicant, grown by the Corporation for this exact mission. Will you obey without question?

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$$ · Standard
Players
👥 Not stated
Reviews
88% of 594

A follow-up to the hit game Vivid Knight, Vivid World is a completely new party-building, roguelike strategy game! Our story takes place in the Underworld, a land ruled by demons. Utilize and master our protagonist, Lemuria's new Jewel Magic to conquer strange dungeons.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
61% of 31

Multiverse Designer is a 3D virtual tabletop and map creator, a unique toolbox for storytellers. Create any kind of scene, environment, character or cutscenes you can imagine, for any setting from fantasy to sci-fi, horror, cyberpunk..., in the most immersive RPG experience you've ever played!

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players

Spooky McGee invites you to the Polterparty! Polterparty is a 4 player online co-op horror game with minigames. A haunted mansion filled with deadly entities awaits, and it’s up to you and your friends to survive the night by outsmarting supernatural.

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