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 11–20 of 62 games matching Mystery Dungeon · updated 12 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 Not stated

Explore ever-shifting depths in Dungeon Door, a classic 2D pixel-art action roguelike. Play a Warrior, Archer, or Mage across 999 floors that reshape every time. Escape collapsing dungeons, gamble on mystery boxes, and crack open locked vaults.

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Free
Released
Price
Free
Players
👥 Up to 4 players
Reviews
50% of 6

Depths is a cooperative multiplayer game where you and up to three friends​ delve into procedurally generated caves, collecting items,​ going deeper, making sure to meet quota every dive. Avoid the monsters that dwell in these caverns​ if you and your friends hope to make it out alive.​

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

Co-op or solo sci-fi horror. Purge a biological outbreak with flamethrowers & grenades. Explore infested zones, grab keycards & stuff, then trigger the protocol to burn the Mother Organism. Team up. Erase the threat

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
72% of 379

经典1.80版重现,经久不衰,装备无限自由打,神装满地爆!在这款原汁原味的MMORPG游戏中,你将与同伴尽情冒险,成就一段强者的传奇成长之路。

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 2

Realmlords is a fast-paced action roguelite bullet/spell-hell. Pick from 12 classes and 11 weapons, fight through elemental realms, crush Portal Guardians and Realm Bosses, survive Hoard Waves, and hunt seven unique Realm Lords. Co-op, artifacts, lore, tempering, and 10 difficulty tiers (so far).

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$$
Released
Price
$$ · Standard
Players
👥 Up to 3 players
Reviews
81% of 11

Ascend the dungeon with your allies! Form a party of up to 3 heroes and dive into endlessly varied dungeons in this co-op roguelite. Master blade, magic, or curse as you unlock new abilities and grow stronger with each run. Every attempt brings new challenges, new builds, and new chances to conquer.

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Free
Released
Price
Free
Players
👥 1–4 players
Reviews
40% of 10

Pulled from a theater into the screen, survive cinematic horrors in this 1-4 player co-op. Beyond running, gather clues and exorcise unique spirits across diverse film genres to escape back to reality. Can you solve the mystery before the final credits roll?

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
100% of 10

Scrubbin' Trubble is a cooperative roguelike where you go solo or team up with up to four players in online multiplayer to slash, smash, and scrub your way through dangerously dirty stages. Use strategy and teamwork to clean up Nasties, and take down the Four Filths of the Apocalypse.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
66% of 12

2079. The sun exploded. The rich fled underground. You were sent to the top, where the sky burns. They call you Penthouse Rats. Descend into ruins crawling with smart, unique creatures. Make noise, one hunts you. Stay silent, another finds you. 1-4 player co-op horror.

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