
S.O.N.A.R. - Submarine Operators Not Actually Ready
A 1-6 player online co-op submarine sim where no one quite knows what they are doing.
Want something that feels retro and tense the way Sub Command does? These co-op games could fill that gap nicely. Sharing the fun is easy with these picks.
Command a WWII U-boat with up to seven co-op friends over LAN, stalking Allied convoys together across the Atlantic. Slow, quiet hunting and shared decisions make this one for patient co-op friends who like tension more than quick rounds.
Tense
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
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.
Tense
Wolfpack puts you and your co-op friends inside a German Type VII U-boat in World War II, each working a station to find convoys, fire torpedoes and slip away undetected. Valves, engines, hydrophones and plotting tables all need hands, so teamwork is the game.
Tense
UBOAT: The Silent Wolf is an amazing combination of a role-playing game and a simulator, offering a deep and immersive experience, allowing you to feel like a real submarine captain during World War II.
Tense
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 wider audience.
Tense
Command: Modern Operations puts you in the chair of a theater commander, running air, sea, land, space and cyber forces on a global map. With real-time multiplayer you can run an operation alongside co-op friends or face off against them, splitting strike packages, air defence and submarine hunts between human brains.
Command a small PT boat and its sailors in the Pacific War, raiding bases and ambushing convoys to earn Victory Points. You tag targets while your crew fires, patch damage, and level up. An experimental co-op option lets co-op friends crew the same boat, which suits the shared chaos of dodging destroyers in a plywood tub.
Tense
Build your own warships down to the missile bays, then take them into deep-space fights with co-op friends. You can run the story campaign together behind enemy lines, or set up skirmishes against the AI or each other and learn radar, jamming, and positioning the hard way.
Tense
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
Carrier Command 2 puts you and co-op friends in charge of a futuristic carrier conquering an island archipelago. Split the bridge crew, launch aircraft and amphibious units, scout with radar and hop into any vehicle to fight yourself. Slow, tactical and best shared.
A military-grade simulation of a fictional 2017 war between Russia, Ukraine and NATO. Command real battalions down to single squads in true 3D, where drones spot, precision artillery strikes and electronic warfare jams.
Tense

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

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

Build a voxel warship with co-op friends, then take it into a campaign with more than 50 missions to liberate Europe.

As Commander of a Naval Super-Destroyer, wage war in a military campaign of epic proportions in, under and above the surface!

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.

Commandos 2: Men of Courage is a slow, tricky WWII stealth-tactics game best shared with co-op friends: you split nine specialists, scout patrols…

Submarines are falling from the sky and it’s up to you to destroy them.

It's simple. Operate your submarine through challenging tight cave systems to collect the target, while not scratching the cave walls under…

Command a small squad of six elite troopers behind enemy lines in World War II, studying patrols and timing a careful strike across 20 missions in…

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!

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!

A standalone expansion with 8 hard World War II stealth-tactics missions.

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

Build a voxel warship with co-op friends, then take it into a campaign with more than 50 missions to liberate Europe.

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

A legendary golden age flight sim. The perfect balance between realism and arcade with retro glidecore graphics.

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

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…

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

Team up with a friend to reach a lost submarine and prevent the outbreak of war.

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.

IronWolf VR puts you and co-op friends inside a roomscale WWII-style submarine where every wheel, lever and gauge is grabbed by hand.

Command a small PT boat and its sailors in the Pacific War, raiding bases and ambushing convoys to earn Victory Points.

Team up in the cockpit for near-future air war: join a public lobby with co-op friends, pick from thirteen aircraft and helicopters, and fly sorties…

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

Build a voxel warship with co-op friends, then take it into a campaign with more than 50 missions to liberate Europe.

Build a maritime career solo or with up to 4 co-op friends in a Northern European open world.

Hunt hidden fleets in fast real-time duels where both players fire at once. Play solo, online, over LAN, or locally with one screen and two phones.

Take the helm of your ship in a fully immersive VR experience.

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

Modern Warships puts you and your co-op friends in command of a modern fleet: carriers, submarines, drones, and jets.

Pick from over 600 WWII-inspired warships, settle into a destroyer, battleship, cruiser, or carrier role, and win through positioning and teamwork.

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

A legendary golden age flight sim. The perfect balance between realism and arcade with retro glidecore graphics.

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