
Subterror
Explore abandoned biospheres at the bottom of the ocean, alone or with up to 4 friends.
If the tense and scary rhythm of Subsurface stuck with you, this helps. These games are worth a look next. Plenty here let you team up if you like.
Explore abandoned biospheres at the bottom of the ocean, alone or with up to 4 friends.
Also in Co-op · Tense, Scary, Replayable
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, Replayable
1st person, Singleplayer, Ocean exploration, Horror game
Tense, Scary, Replayable
Dive into an unforgiving underwater nightmare alone or with friends! Complete deadly missions for the Union in the terrifying depths of Gornak. Repair broken pipes, replace defective equipment, and gather scattered body parts to pay off your debt... if the local fauna doesn't get you first.
Also in Co-op · Tense, Scary, Dark
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, Atmospheric
Darkwater is a co-op extraction horror game for 1 to 4 players. Command a custom submarine trapped beneath the ice of an alien moon, fight enemy vessels and deep-sea things with too many teeth, and scavenge abandoned outposts for the fuel that keeps you alive.
Also in Co-op · Tense, Scary, Replayable
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.
Also in Co-op · Tense, Scary, Dark
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
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, Replayable
You crash-land in a life pod on an alien ocean planet, with hunger, thirst, and oxygen to watch. Gather fish and minerals, craft diving gear and small subs, build a seafloor base, and push from bright coral shallows toward trenches, lava fields, and caves to find a way off the planet.
Tense, Scary, Replayable
ABYSS is a challenging multiplayer co-op horror game where you and your crewmates must operate an old submarine through narrow trenches, scavenging scrap from the ocean floor and avoiding the denizens that lurk in the deep. But not all is as it seems, for traitors may be lurking around every corner.
Also in Co-op · Tense, Scary, Dark
Rediscover the meaning of terror with Submersed. Are you afraid of depths? You will be.
Tense, Scary, Dark

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

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…

1st person, Singleplayer, Ocean exploration, Horror game

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

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…

Rediscover the meaning of terror with Submersed. Are you afraid of depths? You will be.

Hell Dive is a first-person horror game where you are a Maritime Operative alone aboard a submarine.

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

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

Sunken Seeker is a short, first-person underwater horror experience.

Pilot your submarine to activate and reestablish a network of beacons while carefully utilizing your sonar to navigate the low-visibility depths of…

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

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

There's Nothing Down There is a short undersea horror exploration game.

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

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

Pilot a submarine through a frozen alien sea with your crew, fighting what swims out of the dark and scavenging for the fuel to keep going.

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…

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

Dive into a haunted open sea, scavenge for treasure and fight off swarms of sea creatures under the mind control of a giant Kraken.

UNDERWARD is a 1-4 player co-op horror exploration game. Investigators must carry «TEST-SUBJECT» monsters from a deadly underground abandoned…

Scan alien life, build a base and follow the CICADA's hidden signals into the deep, alone or with friends.

Pump the water out, patch the hull and keep the reactor alive while something hunts your crew in the dark, with friends or strangers at your side.

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…

Every expedition is a gamble. Explore procedurally generated underground facilities, recover valuable loot, survive unique monsters, and escape…

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.

Pilot a mining sub into the crushing deep. Drill down, haul treasure up, and race the air in your tanks — one more gem, or turn back?

Loot cursed graveyards from a flying pirate ship with your crew, staying silent while monsters listen for every sound you make.

A first-person deep sea exploration game. Use only a torch to navigate through rusted structures, encountering both dangerous and harmless sea…

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.

Discover the true meaning of isolation in Underwater, a survival horror game set in an atmosphere of constant dread, darkness, and crushing pressure.

There's Nothing Down There is a short undersea horror exploration game.