Player Decision Brief

What'Sub

Consider What'sub if you want solo or online submarine looting built around procedural ocean dives, upgradeable vessels, and risk-versus-reward decisions. Its co-op focus may be less appealing if you prefer strictly solo games.

$6.79 Windows Action Nov 04, 2026 71% Positive (42 reviews)

$6.79 View on Steam

Is What'Sub Right For You?

Best For

✓ Players looking for online co-op looting
✓ Solo players who want submarine exploration
✓ Fans of procedural levels and repeatable dives
✓ Players who enjoy upgrading vehicles and customizing characters

Think Twice If

! Players seeking a clearly described, story-led campaign
! Players who prefer games without risk-versus-reward decisions
! Players on platforms other than Windows

Before You Buy What'Sub

Check the Windows system requirements against your PC.

The game lists English as its supported language.

Online co-op is supported; check the Steam page for current player and connection details.

The listed features include full controller support, Steam Cloud, and Family Sharing.

Review the Steam page for current pricing and player reviews before deciding.

What'Sub Fit Matrix

Coop

High

Solo

Medium

Grind

Medium

Story

Low

Performance risk

Medium

Beginner friendly

Medium

What'Sub Key Features

Solo dives or online crews

What'sub supports single-player and online co-op, with the game describing crews of one to four or more players.

Procedurally generated ocean levels

Explore three ocean biomes with procedurally generated levels, including shipwrecks, caverns, and ocean life.

Risk-versus-reward treasure runs

Loot the ocean and decide whether to push farther for more treasure despite the submarine's limits and growing dangers.

Upgradeable submarines

Three submarines can be upgraded to become faster and sturdier, helping them withstand increasingly threatening forces.

Pirate customization

More than 100 character customization options let players dress up their submarine-pirate characters.

Windows and controller support

The listed platform is Windows, with full controller support, Steam Cloud, and Family Sharing.

What'Sub Screenshots

What'Sub FAQ

Can I play What'sub solo?

Yes. What'sub lists single-player support, and its three submarines are described as playable in solo and co-op.

Does What'sub support co-op?

Yes. What'sub supports online co-op for crews of 1–4 or more players, according to its description.

What platforms and languages does What'sub support?

The listed platform is Windows, and English is the listed language. Check the Steam page for any changes to platform or language support.

Does What'sub support controllers?

Yes. Steam lists full controller support, including DualShock and DualSense controller support.

What should I check before buying What'sub?

Review the Windows system requirements and confirm they suit your PC. The store page also has current pricing and review information; the game is described as a risk-versus-reward looter with submarine upgrades.