
Murky Divers
A co-op horror job at the bottom of the sea: dive into sunken labs with up to eight friends, destroy what Pharma Corps wants gone, and hope the dark…
Hooked on the tense and scary side of Darkwater? You will find a few strong contenders among these games. Many of them are fun to share with friends.
Pilot a blind submarine to the bottom of the sea, swim into abandoned labs full of corpses, and shred every last piece of evidence for Pharma Corps. Up to 8 players, dwindling oxygen, and things in the dark that would rather you didn't finish the job.
Also in Co-op · Tense, Scary, Dark
Explore abandoned biospheres at the bottom of the ocean, alone or with up to 4 friends.
Also in Co-op · Tense, Scary, Dark
A 2D co-op submarine simulator set in the ocean under the ice of Jupiter's moon Europa. Run the sonar, reactor, guns and pumps with up to 15 crewmates, fix leaks while something claws at the hull, and decide who to trust when a traitor is aboard.
Also in Co-op · Tense, Scary, Dark
A 1-6 player online co-op submarine sim where the crew is the weak point. Run sonar, pilot, load torpedoes and fight fires while your friends shout over proximity chat. Missions, treasure hunts, stealth runs and PvP, with sinking always one wrong button away.
Also in Co-op · Tense, Chaotic
A Jules Verne-flavoured submarine adventure under a frozen ocean. Captain your own vessel through a haunting flooded world, fight other subs and sea monsters, manage a hungry crew, and dig for humanity's buried secret. Slow, moody and atmospheric, with a soundtrack that carries you through the dark.
Tense, Dark, Mysterious
Crew a submarine with friends in a Verne-inspired undersea roguelike. Pilot, patch leaks, load torpedoes and reroute power while sea monsters claw at the hull. Communication or perishing, those are the options. Chaotic, hand-drawn and endlessly replayable, with 19th-century outfits and non-gender-specific mustaches included.
Also in Co-op · Tense, Scary, Replayable
Subnautica 2 is an underwater survival adventure on a new alien world. After the colony ship CICADA strands you and your fellow Pioneers, you scan strange life, craft tools, build a custom base, and push into deeper water alone or with up to three friends to learn what the ship AI is hiding.
Also in Co-op · Tense, Scary, Dark
FULL METAL COFFIN is a 3D co-op submarine simulator. Crew your vessel with up to 4 players. Load the torpedoes, dodge incoming fire, and eliminate the enemy.
Also in Co-op · Tense
Black rain is falling and the Flood is coming. Lead the last survivors, send divers into a cursed abyss, and manage oxygen, sanity and hope while an angry sea god watches. A dark underwater mix of survival, camp management and dread, where every descent is a gamble and sacrifice is part of the plan.
Tense, Scary, Dark
A post-apocalyptic survival game set after the seas swallowed most of the Earth. You scavenge sunken skyscrapers and subways, build a base on water or land, fight pirates and mutants, trade item for item, and team up with friends. Worth playing for the waterlogged scavenging loop and the freedom to shape your own stronghold.
Also in Co-op · Tense, Dark, Chaotic
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! Loot the ocean for treasure, fulfill requests for the odd denizens of the Subyard, upgrade your submarine, and above all, dive deeper into The Well.
Also in Co-op · Tense, Replayable, Chaotic
A 1 to 4 player co-op survival horror. You and your crew take contracts aboard an abandoned spaceship while something in the dark hunts you. Identify the creature, use your tools well, and get out alive. Every mission picks a different monster, so no two runs play the same.
Also in Co-op · Tense, Scary, Dark

A co-op horror job at the bottom of the sea: dive into sunken labs with up to eight friends, destroy what Pharma Corps wants gone, and hope the dark…

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

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

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!

A hand-drawn survival horror where you fish for answers by day and ration your hope by night, with endings that rarely turn out kind.

Your ride is dead, and rough waters lie ahead! Survive aboard a musty boat in a totally chaotic co-op.

Welcome [EMPLOYEE] to your new job protecting Deep Sea Cables from creatures of the deep.

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

A co-op survival horror in the frozen Arctic: gather classified documents on the black goo virus and call the evacuation chopper before the US…

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

Command a WWII submarine and keep your sailors alive, fed and steady through patrols where every dive can be your last.

Rip loot from a haunted island with your crew and try to keep someone alive on the way back to the ship.

A hand-drawn survival horror where you fish for answers by day and ration your hope by night, with endings that rarely turn out kind.

Send divers down into a cursed abyss and keep the last survivors breathing, sane and hopeful as the Flood rises.

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

Run a submarine with your friends, where every valve, torpedo and fire drill can go hilariously wrong.

Ride a cursed elevator down with friends, grab what you can from the ruins, and rebuild your Outpost before the Corrupted catch you.

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…

Take the helm of a trawler, fish murky waters, craft gear and fight what the catastrophe left behind.

Rip loot from a haunted island with your crew and try to keep someone alive on the way back to the ship.

Take a contract on an abandoned ship, figure out which creature is stalking your crew, and survive the run.

A co-op horror job at the bottom of the sea: dive into sunken labs with up to eight friends, destroy what Pharma Corps wants gone, and hope the dark…

Loot, hack and sneak your way out of a building that hunts you, alone or with up to three friends.

Take the helm of a trawler, fish murky waters, craft gear and fight what the catastrophe left behind.

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!

Run a submarine with your friends, where every valve, torpedo and fire drill can go hilariously wrong.

Dive into an unforgiving underwater nightmare alone or with friends! Complete deadly missions for the Union in the terrifying depths of Gornak.

Rip loot from a haunted island with your crew and try to keep someone alive on the way back to the ship.

A first-person Lovecraftian horror aboard a nuclear submarine lost in the North Atlantic.

Ride a cursed elevator down with friends, grab what you can from the ruins, and rebuild your Outpost before the Corrupted catch you.

Send divers down into a cursed abyss and keep the last survivors breathing, sane and hopeful as the Flood rises.

Physics-based co-op extraction game for crews of 2-4 players.

A hand-drawn survival horror where you fish for answers by day and ration your hope by night, with endings that rarely turn out kind.

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

Scavenge a monster-haunted island, build a moving base on rails, and uncover its secrets alone or with friends.