
Murky Divers
Grab up to seven co-op friends, pilot a blind submarine by sonar to an abandoned lab, then swim in to haul out corpses for the shredder.
If Depth Diver left you wanting something tense and scary, you have options. These co-op games could fill that gap nicely. Most of them work well for a shared session.
Grab up to seven co-op friends, pilot a blind submarine by sonar to an abandoned lab, then swim in to haul out corpses for the shredder. The sub work forces teamwork, the wrecks supply the scares, and the whole shift feels tense, silly, and built for shouting over proximity chat.
Tense, Scary, Dark
Explore abandoned biospheres at the bottom of the ocean, alone or with up to 4 friends.
Tense, Scary, Dark
Crew a leaky submarine with two to four co-op friends in a hand-drawn undersea trench that reshuffles every run. One of you pilots, one patches hull breaches, one loads torpedoes, and plans fall apart fast. Worth playing for the shared panic and the laugh when you save the ship anyway.
Tense, Scary, Atmospheric
Darkwater puts you and up to three co-op friends in a custom submarine trapped under the ice of an alien moon. One of you pilots, one works sonar, someone else patches leaks while torpedoes close in, then you dock and strip abandoned outposts for fuel on foot. It is tense, scrappy teamwork with naval battles, boarding raids and deep-sea horrors.
Tense, Scary, Dark
A deep-sea exploration company sends you and your friends to investigate a research facility that has mysteriously gone silent. Face terrifying events together, survive as a team, and uncover the truth hidden within the depths.
Tense, Scary, Dark
Subsurface is a 1–4 player co-op underwater horror game. Explore abandoned facilities, scavenge valuable loot, and survive eight terrifying monsters while racing against your oxygen supply. Meet your quota, escape the depths, and try not to leave your friends behind.
Tense, Scary, Dark
Hidden Deep sends your rescue team more than a mile under the ocean floor to find a lost expedition. Bring grappling hooks, scanners and heavy firepower, because something down there does not want to be found.
Tense, Scary, Dark
Trapped in a sinking submarine, two players must communicate through walkie-talkies to solve puzzles, complete tasks, navigate the depths, and escape before time runs out.
Tense, Scary, Dark
Barotrauma puts you and up to 15 co-op friends inside a cramped submarine under the ice of Jupiter's moon Europa. Run the reactor, patch leaks, shoot monsters, complete missions for outposts, and try not to sink. It is tense, messy teamwork where something always breaks at the worst moment.
Tense, Scary, Dark
DEEP SEAL is a 1–4 player co-op underwater horror game. Dive into dark, labyrinthine caves to recover bodies, find your way through the depths, and avoid the shark that's always hunting you. Grab what you can, find your teammates, and swim back alive.
Tense, Scary, Dark
An atmospheric first-person narrative adventure set in a surreal seascape locked between ice and rock. Following an incident, you and a friend must find power, defeat strange and deadly creatures, and decipher what mysterious forces are attempting to prevent your escape. Escape together or die alone.
Tense, Scary, Dark
A 1-6 player online co-op submarine sim where no one quite knows what they are doing. You and your co-op friends run sonar, steering, repairs and torpedoes through combat, stealth and treasure hunts, while fires, leaks and hunger keep you shouting at each other.
Tense, Atmospheric

Grab up to seven co-op friends, pilot a blind submarine by sonar to an abandoned lab, then swim in to haul out corpses for the shredder.

Explore abandoned biospheres at the bottom of the ocean, alone or with up to 4 friends.

Subterranauts is a 1-6 player multiplayer horror game with proximity voice chat and terrifying creatures.

FULL METAL COFFIN is a 3D co-op submarine simulator. Crew your vessel with up to 4 players.

ABYSS is a challenging multiplayer co-op horror game where you and your crewmates must operate an old submarine through narrow trenches, scavenging…

What'Sub is a 1–4+ player Co-op Extraction "Looter". Band together as a crew of rugged submarine pirates, on a deep-sea quest for power and glory!

Survive the world's deadliest psychopaths. Experience a unique 2-player co-op experience that puts your teamwork and communication to the test.

A co-op horror game where you must scavenge for loot and maintain the bunker to keep it standing

Wreck Below is an underwater horror game where you dismantle wrecks and avoid the unseen threat of The Arbiter.

Dreadline: Net Quota is a chaotic co-op game for up to 6 players set on dangerous seas.

Emissary Zero sends you and up to three co-op friends into a shifting building at night to find the Moon and get out alive.

Work the deadly night shift as banished knights, completing tasks for villagers while horrors hunt you across a cursed kingdom.

FULL METAL COFFIN is a 3D co-op submarine simulator. Crew your vessel with up to 4 players.

A 1-6 player online co-op submarine sim where no one quite knows what they are doing.

Survive the world's deadliest psychopaths. Experience a unique 2-player co-op experience that puts your teamwork and communication to the test.

GONE Fishing is a 1-8 player survival horror about fishing to feed a hungry lake beast.

Explore abandoned biospheres at the bottom of the ocean, alone or with up to 4 friends.

Trapped in a sinking submarine, two players must communicate through walkie-talkies to solve puzzles, complete tasks, navigate the depths, and…

Darkwater puts you and up to three co-op friends in a custom submarine trapped under the ice of an alien moon.

Step into the frozen unknown in Forsaken Frontiers, a cooperative analog horror adventure set in the unforgiving embrace of an everlasting winter.

Grab up to three co-op friends and take mercenary contracts aboard a derelict spaceship where something is already hunting you.

FEAR OF FAITH is a 1-4 player co-op survival horror game where cloned soldiers raid cursed WWII bunkers.

Emissary Zero sends you and up to three co-op friends into a shifting building at night to find the Moon and get out alive.

Grab up to seven co-op friends, pilot a blind submarine by sonar to an abandoned lab, then swim in to haul out corpses for the shredder.

What'Sub is a 1–4+ player Co-op Extraction "Looter". Band together as a crew of rugged submarine pirates, on a deep-sea quest for power and glory!

ABYSS is a challenging multiplayer co-op horror game where you and your crewmates must operate an old submarine through narrow trenches, scavenging…

A 1-6 player online co-op submarine sim where no one quite knows what they are doing.

GONE Fishing is a 1-8 player survival horror about fishing to feed a hungry lake beast.

Do you love ghost hunting with friends? Do you love the thrill of a crucifix burning in your hand as you exorcize ancient spirits?

FEAR OF FAITH is a 1-4 player co-op survival horror game where cloned soldiers raid cursed WWII bunkers.

Team up as explorers hunting treasure in a cursed jungle that messes with your eyes and ears.

FULL METAL COFFIN is a 3D co-op submarine simulator. Crew your vessel with up to 4 players.

Project: Mist is an open-world survival horror for solo or 1-4 player co-op on a strange island full of abandoned facilities and giant creatures.

Subnautica 2 strands you and up to three co-op friends on a new alien ocean after the colony ship CICADA goes wrong.

Escape together or die alone. A relentless creature is hunting you in this intense co-op bodycam horror experience. Communicate. Stay quiet. Survive.

Darkwater puts you and up to three co-op friends in a custom submarine trapped under the ice of an alien moon.