Submergent
Explore and navigate an underwater cave in your submarine.
65% of 17 Steam reviews are positive$1.99
Games like Sub Optimal Co.
Remember how minimalist and atmospheric Sub Optimal Co. felt at its best? Give these games a try when the craving hits. Plenty here let you team up if you like.
S.O.N.A.R. - Submarine Operators Not Actually Ready
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 · Atmospheric
94% of 371 Steam reviews are positivePlayers online now: 710$8.49Murky Divers
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 · Atmospheric
87% of 3,999 Steam reviews are positivePlayers online now: 29$8.99FULL METAL COFFIN
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 · Atmospheric
93% of 147 Steam reviews are positive$4.99Sync Or Sink
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.
Also in Co-op · Atmospheric
87% of 178 Steam reviews are positiveFreeSubterror
Explore abandoned biospheres at the bottom of the ocean, alone or with up to 4 friends.
Also in Co-op · Atmospheric
89% of 399 Steam reviews are positive$7.99We Need To Go Deeper
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 · Atmospheric
86% of 4,655 Steam reviews are positivePlayers online now: 16$15.99Sonar Scout
Pilot your submarine to activate and reestablish a network of beacons while carefully utilizing your sonar to navigate the low-visibility depths of the ocean.
Minimalist, Atmospheric
100% of 26 Steam reviews are positive$5.99Submergent
Explore and navigate an underwater cave in your submarine.
Minimalist, Atmospheric
65% of 17 Steam reviews are positive$1.99What'Sub
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 · Atmospheric
71% of 49 Steam reviews are positive$6.79Darkwater
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 · Atmospheric
77% of 1,009 Steam reviews are positivePlayers online now: 19$9.99My Rusty Submarine - New Waters
Grab a friend for a deep sea dive. Repair your submarine and try to get as far as possible with this old and rusty, but charming submarine!
Also in Co-op · Atmospheric
100% of 9 Steam reviews are positive$1.99Submerge
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 · Atmospheric
63% of 98 Steam reviews are positive$9.99
Cheaper than Sub Optimal Co.
My Rusty Submarine - New Waters
Grab a friend for a deep sea dive. Repair your submarine and try to get as far as possible with this old and rusty, but charming submarine!
100% of 9 Steam reviews are positive$1.99
S.U.B.
Navigate through the dark, deep seas with your best friend to infiltrate the Evil Doctor's Secret Underwater Base © in this two-person local couch…
50% of 4 Steam reviews are positive$1.99
Dangerous Waters
S.C.S. - Dangerous Waters allows you total control over multiple air, surface, and submarine platforms in a modern-day naval environment.
79% of 353 Steam reviews are positive$2.99
There's Nothing Down There
There's Nothing Down There is a short undersea horror exploration game.
84% of 439 Steam reviews are positive$2
ROAD HOMEWARD 3 underwater world
ROAD HOMEWARD 3: underwater world is an adventure in which you and your team need to find a way out of the cave in order to get home.
50% of 2 Steam reviews are positive$0.69
Ocean Pressure
Ocean Pressure is a singleplayer game where you as an old scientist piloting your handmade submarine in the bottom of the ocean.
59% of 27 Steam reviews are positive$2.99
SUBS: Sharks And Submarines
Submarines are falling from the sky and it’s up to you to destroy them.
80% of 10 Steam reviews are positive$0.99
Soobmarinno
Explore the depths of the ocean filled with dangerous inhabitants.
77% of 13 Steam reviews are positive$0.49
Shipped
Challenge your friends in a naval battle of steering, pushing and shooting. Keep your ship on-screen and avoid crashing with land to survive.
95% of 583 Steam reviews are positive$1.99
Sunken Ships
Explore a little seaside coast of submerged ruins, sunken ships and lonely islands.
90% of 10 Steam reviews are positive$2.99
Thalassophobia
As a cataclysmic event rocks the planet, you find yourself in an old, decrepit submarine tasked with only one goal: survive.
100% of 10 Steam reviews are positive$2.99
Hidden gems like Sub Optimal Co.
FULL METAL COFFIN
FULL METAL COFFIN is a 3D co-op submarine simulator. Crew your vessel with up to 4 players.
93% of 147 Steam reviews are positive$4.99
S.O.N.A.R. - Submarine Operators Not Actually Ready
Run a submarine with your friends, where every valve, torpedo and fire drill can go hilariously wrong.
94% of 371 Steam reviews are positivePlayers online now: 710$8.49
Subside
Subside is an immersive aquatic VR experience with multiple areas to explore and lifelike aquatic creatures to interact with.
96% of 527 Steam reviews are positivePlayers online now: 2$24.99
There's Nothing Down There
There's Nothing Down There is a short undersea horror exploration game.
84% of 439 Steam reviews are positive$2
Sync Or Sink
Trapped in a sinking submarine, two players must communicate through walkie-talkies to solve puzzles, complete tasks, navigate the depths, and…
87% of 178 Steam reviews are positiveFree
Subterror
Explore abandoned biospheres at the bottom of the ocean, alone or with up to 4 friends.
89% of 399 Steam reviews are positive$7.99
IronWolf: Free Non-VR Edition
This is the Free Non-VR version of IronWolf VR. A co-op submarine game with a light touch on realism, making the submarine sim genre accessible to a…
94% of 679 Steam reviews are positiveFree
Darkwater
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.
77% of 1,009 Steam reviews are positivePlayers online now: 19$9.99
How 2 Escape: Lost Submarine
Team up with a friend to reach a lost submarine and prevent the outbreak of war.
83% of 161 Steam reviews are positive$12.99
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…
87% of 3,999 Steam reviews are positivePlayers online now: 29$8.99
IronWolf VR
You crew a World War 2 submarine in VR, from the torpedo tubes to the engine room, alone or with friends.
94% of 1,091 Steam reviews are positive$19.99
Submerged: Hidden Depths
Boat, climb, interact and explore in the beautiful ruins of a sunken world.
89% of 749 Steam reviews are positivePlayers online now: 5$29.99
Newest games like Sub Optimal Co.
What'Sub
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!
71% of 49 Steam reviews are positive$6.79
ABYSS
ABYSS is a challenging multiplayer co-op horror game where you and your crewmates must operate an old submarine through narrow trenches, scavenging…
100% of 4 Steam reviews are positive$4.99
S.O.N.A.R. - Submarine Operators Not Actually Ready
Run a submarine with your friends, where every valve, torpedo and fire drill can go hilariously wrong.
94% of 371 Steam reviews are positivePlayers online now: 710$8.49
Depth Diver
Dive into an unforgiving underwater nightmare alone or with friends! Complete deadly missions for the Union in the terrifying depths of Gornak.
100% of 3 Steam reviews are positive$9.99
Deepclaim
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?
100% of 2 Steam reviews are positive$6.99
Silent Shark
A tactical, map-based WWII submarine sim set in the Pacific Theater: Approach, intercept, strike unseen, withdraw into the deep.
97% of 147 Steam reviews are positivePlayers online now: 4$17.99
The Cave Diver
A brutally challenging physics-horror caving game. Using only your hands, drag yourself down a suffocating cave system where every hold pulls you…
73% of 133 Steam reviews are positive$9.99
FULL METAL COFFIN
FULL METAL COFFIN is a 3D co-op submarine simulator. Crew your vessel with up to 4 players.
93% of 147 Steam reviews are positive$4.99
There's Nothing Down There
There's Nothing Down There is a short undersea horror exploration game.
84% of 439 Steam reviews are positive$2
Subnautica 2
Scan alien life, build a base and follow the CICADA's hidden signals into the deep, alone or with friends.
91% of 119,415 Steam reviews are positivePlayers online now: 3,019$29.99
Scrap Diver
A minimalist 3d incremental clicker about cleaning a dam with a submarine. Dive Deep. Scrap Hard. Get Paid.
88% of 8 Steam reviews are positive$3.99
Darkwater
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.
77% of 1,009 Steam reviews are positivePlayers online now: 19$9.99