Last 7 days
Screenshots, achievements, specs, every price change and sale we've seen on Steam, and trading cards.
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95% positive of 238 · Very Positive · Live from Steam
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WWII Tactical submarine combat in the South Pacific
Live data from Steam, tracked by SteamPlayerBase.
What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 95% on 2026-11-01 → 95% today (238 reviews)
No authorized Steam key store lists this game right now.
Works, but may need extra effort. Results from Valve's own testing.
Valve hasn't published test details for this game.
2 items on Steam, newest first.


Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
Public Beta
• Alert whistle will now sound when a previously-spotted enemy comes back into visual range if contact had been fully lost (chart marker was removed) • Fixed bug where Waiting in Place while on a “Sink the Target Ship” side mission would cause all escorts to r…
• Modding: Made Crush Depth values moddable • Fixed bug where depth achievements could fail to trigger
• Added Spanish localization • Added drop shadow to torpedo track time markers to make them more readable against light blue background • Fixed bug where side mission search ships would give up and leave on loading a saved game
• Added channel to separate Nagashima Island in Sea of Japan • Added separate saved value for Wait in Place “Stop for Targets of Opportunity” (vs Fast Travel) • East Indies: Prevented getting side missions on the coast of Australia
• Added features to Custom Markers: Time, speed, and extrapolated position • Added saving/loading of crew location assignments • Added saving/loading of location repair order • Added some missing text localizations
• Fixed .50-cal AA gun fx stuck on if gun was firing when boat submerged
V1.4.3: • Added East Indies Expansion Pack • Added filtering to mission log viewer • Enemy aircraft are now grounded in heavy rain (moddable) • Removed download timeout (for slow network connections) • Modding: Can now set age range for crewmen • Modding: Allo…