What'Sub screenshot 1
Early Access Trailer
What'Sub screenshot 3
What'Sub screenshot 4
What'Sub screenshot 5
What'Sub screenshot 6
What'Sub screenshot 7

Games Like What'Sub

74%Mostly Positive · 27
View on SteamBuyChecking stores…

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.

Top matches

Match strength key:80+65+50+<50
Finding similar games…

About What'Sub

What'Sub is a 1–4 player co-op extraction diver where you crew a rust-bucket submarine, descend into the Bermuda Triangle, and decide how deep your greed actually goes.

Descend into "The Well"

Navigate caverns, wrecks, and treacherous terrain. Visibility is limited. Hazards appear late. The deeper you go, the more long-lost treasure waits and the harder it gets to leave.

What'Sub video 1

Risk It or Lose It

Make it back to the surface with your haul and keep everything: loot, upgrades, progress. Drown down there and lose everything you brought in. Every dive is a negotiation between what you stand to gain and what you're willing to gamble.

What'Sub video 2

Keep the Sub Running

The sub breaks down constantly, at the worst possible moment, for the least forgivable reason. Hull breaches, a stalled engine; the list of things that can go wrong is longer than the list of things working correctly. Patch it, smack it, restart it, and keep moving. It's not much, but it's all you've got.

What'Sub video 3

The Ocean Never Repeats Itself

Procedurally generated levels mean no two dives are the same. There's always something new to discover and always a reason to go back down.

What'Sub video 4

Strange Faces at the Bottom

The Well has its own residents. Meet the characters that call the deep home, buy cosmetics, and pry secrets about the Well out of the ones willing to talk.

What'Sub video 5

Features

Online co-op for up to four players

Extraction mechanics with full loot loss on death

Interdependent submarine systems and crew roles

Characters, cosmetics, and a customizable submarine

Procedurally generated ocean levels

Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.

All matches

Similar games to What'Sub

Finding similar games…