
What'Sub
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.
Offers
What are keyshops?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.
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.
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.
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.
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.
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
Game details
Game details
Age ratings
Languages
What'Sub price history
Lowest tracked price: €7.99 (Jul 7, 2026) · current best: €7.99.
What'Sub reviews
70% positive reviews all-time.
What'Sub — frequently asked questions
Where can I buy What'Sub at the cheapest price?
Right now the cheapest offer for What'Sub is €7.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price What'Sub has ever been?
The lowest price KingsPrice has tracked for What'Sub is €7.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How can I get What'Sub at a discount?
Create a free price alert on this page and KingsPrice will email you when What'Sub drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10+
- Processor: 2 cores
- Memory: 8 GB RAM
- Graphics: Dedicated, 4GB VRAM
- Storage: 2 GB available space
Recommended
- Requires a 64-bit processor and operating system











