Released May 14, 2026 Early Access $7.99 Mostly Positive Not counted on Steam profiles yet

What'Sub

By Khaos Games

Multiplayer Procedural Generation Adventure Online Co-Op Co-op Roguelite Simulation Exploration ActionComedyPvESurvival

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Reviews 40 Mostly Positive

Players now 0 Peak today 0

Followers, 30 days — Not enough history yet

What'Sub is a game tagged Multiplayer, Procedural Generation and Adventure by Khaos Games, released May 14, 2026. It has 40 Steam reviews (Mostly Positive). The Steam games most like it include Deep Trouble, Hadalis and Too Deep To Quit.

What'Sub is a 4-player co-op submarine extraction game where you pilot a rust-bucket submarine into the depths of the Bermuda Triangle to recover treasure from the ocean’s seafloor. Gear up, descent, risk everything to bring your haul back to the surface, then dive again to ever deeper levels.

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Deep Trouble 80% match · Multiplayer, Adventure, Online Co-Op
Hadalis 76% match · Multiplayer, Adventure, Online Co-Op
Too Deep To Quit 74% match · Multiplayer, Procedural Generation, Adventure
Break the Walls 73% match · Multiplayer, Procedural Generation, Adventure
Sky Pirates 68% match · Multiplayer, Procedural Generation, Adventure
OneTank 68% match · Adventure, Online Co-Op, Co-op
Subcontractors 67% match · Multiplayer, Procedural Generation, Adventure
How Deep 67% match · Multiplayer, Procedural Generation, Online Co-Op
FixForce 67% match · Multiplayer, Adventure, Online Co-Op
DEATH FROM BELOW 67% match · Multiplayer, Adventure, Online Co-Op

Steam data

Everything Steam lists for What'Sub · record updated 43 minutes ago

Steam store

Overview

App ID4269100

Release dateMay 14, 2026

Last change number40260517

Last record update43 minutes ago

App type: Game
Developer: Khaos Games, Nordic Softworks, Future Punch
Publisher: Khaos Games
Steam profile: Not counted yet: Steam is still getting to know this game, so it doesn't add to game counts or achievement totals · checked 1 day ago
Website: whatsubgame.com

Windows 64-bit

Steam Deck: Unsupported

Single-playerMulti-playerOnline co-opCo-opSteam CloudFamily Sharing

Prices

Price · US$7.99

On sale0 of 41regions right now

Lowest seen · US$7.99Oct 23, 2026

Checked4 hours agoin 41 regions

South Korea₩KRW

Every price change is kept from Oct 23, 2026 on. Pick a region below to compare.

Patches

Build	Branch	Updated
25035923	public	Aug 31, 2026

Depots

ID	Name	Systems	Size	Download	Manifest
228989	— shared from 228980	Windows	—	—	—
228990	— shared from 228980	Windows	—	—	—
4269101	—	Windows	1.68 GB	1.50 GB	769969550661036132

Branch	Build	Updated	Access
public	25035923	Aug 31, 2026	Open

Configuration

Install foldersteamapps/common/WhatSub

Executable	Arguments	Systems	Description
Sub.exe		Windows

Space per player95.4 MB

Filesup to 100

Save locations2

Root	Path	Pattern	Systems
gameinstall	Sub/Saved/SaveGames	*.sav	All
WinAppDataLocal	Sub/Saved/SaveGames	*.sav	All

Achievements

Achievements400 hidden

Most unlocked0.6%Drip happens

Rarest0%You snooze you loose

Drip happens Spring 5 leaks. 0.6%
Seal the deal Repair 10 leaks. 0.6%
Going Deeper Dive deeper for the first time. 0.6%
Catch! Throw an item 10 times. 0.5%
Eco Pirate Grab your first item from the seafloor. 0.5%
Finders Keepers Grab your first treasure from the seafloor. 0.5%
Bonk Hit a player with your wrench 5 times. 0.4%
Harbinger of Chaos Hit a player with your wrench 100 times. 0.4%
Patch Work Repair 100 hull breaches. 0.4%
Shell Shocked Hit a crab with your wrench 5 times. 0.4%
Sunken Savings Spend 2000 coins. 0.4%
Wake The Waters Reach level 4. 0.4%
Cave Explorer Enter a cave for the first time. 0.3%
Leviathan’s Threshold Reach level 5. 0.3%
Sub-par no more Buy 5 upgrades for your submarine. 0.3%
Yoink Hit an item with a harpoon that a crewmate is currently reeling in. 0.3%
Chime Master Hit the chime pipes in the lobby 10 times. 0.2%
Stylish Buy 10 cosmetic. 0.2%

All 40 achievements

Depths Uncharted Reach the bottom for the first time. 0.1%
Trendsetter Spend 10000 on cosmetics. 0.1%
Abyssbreaker Reach level 6. 0.1%
Caffeinated Corsair Drink coffee 5 times. 0%
Companion Crate Bring a fragile crate with you from a cave to the extraction. 0%
Ding! Scan with the periscope 5 times. 0%
Down the Drain Flush 1 item down the toilet. 0%
First Tide Start a mission 5 times. 0%
For the hoard Earn a million billion trillion coins. 0%
Hoarder Harpoon 1000 items. 0%
Hold Your Breath Extract with less the 5 oxygen. 0%
I am the resurrection Be revived 5 times. 0%
It's clogged Flush 10 items down the toilet. 0%
Jumper Jump 1000 times. 0%
Life preserver Revive 8 crewmembers. 0%
Pincushion Extract with 10 or more holes 5 times. 0%
Scout Mark 5 things in the periscope. 0%
Smooth Sailing Extract with no leaks 5 times. 0%
Sniper Harpoon a 10 items that 100 meters or more away. 0%
Sniper Elite Harpoon a 100 items that 100 meters or more away. 0%
Tide turner Revive 5 players. 0%
You snooze you loose Become unconscious 5 times. 0%

Data from public Steam pages, updated daily; 5 days of history. LaunchRivals is not affiliated with Valve or Steam.

What'Sub

About What'Sub

Steam data

Overview

App info

Platforms

Features

Prices

South Korea₩KRW

Americas 10

Europe 5

CIS 4

Asia-Pacific 15

Middle East & Africa 7

Patches

Builds

Depots

Depots

Branches

Configuration

Launch options

Cloud saves

Achievements

Global unlock rate