Steam app 494840 · updated 12 Sep 2026, 17:51 UTC
UBOAT is a simulator of a submarine from WWII era. It is a survival sandbox with crew management mechanics while its primary theme is life of German sailors. The boat is their home, but it can become their grave at any time.
720 hourly samples, with the daily peak drawn over them. Weekends are shaded.
111 months, July 2016 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 438 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 282 hourly samples. Each dip is a night. Weekends are shaded.
UBOAT was released on 2 Aug, 2024.
| Language | Full audio |
|---|---|
| English | ● |
| French | |
| Italian | |
| German | ● |
| Spanish - Spain | |
| Polish | |
| Russian | |
| Korean | |
| Simplified Chinese | |
| Turkish | |
| Czech | |
| Portuguese - Portugal | |
| Japanese |
A blank audio cell means full audio was not marked in the returned language list.
51 achievements in total.
50 developer announcements, Nov 2024 to Aug 2026 · times in UTC
Dear captains, There is a new patch available for update 2026.1. Changelog: Missions: - Fix: In Enigma recovery assignment, if the wreck disappears for any reason, it's respawned where it should be. - Fix: Resolved general issue that could…
Patch notesDear captains, There is a new patch available for update 2026.1. Changelog: Localization:- Russian localization update by Hard. - German localization update by Ruby. Type IX:- Fix: After assigning officer to one of the AA guns on Turm II…
Patch notesDear captains, There is a new patch available for update 2026.1. Changelog: Type IX:- Fix: Conning tower damages were sometimes rendered as see-through holes with nothing underneath. - Fix: Resolved issues with conning tower hatches being…
Patch notesDear captains, There is a new patch available for update 2026.1. Changelog: Type IX: - Fix: Ensured compatibility of camouflages with the conning towers. - Fix: In existing saves, the issue with missing geometry under the stern loading…
Patch notesDear captains, There is a new patch available for update 2026.1. Changelog: Type IX:- Fix: Missing geometry under the stern loading hatch for loading torpedoes. - Fix: Forward deck gun was incorrectly reported on the Overview screen. Type…
Patch notesDear captains, There is a new patch available for update 2026.1. Changelog: Type IX: - Fix: It wasn't possible to open hatch from the engine room to the control room in FPP. Damage system: - Water inflow rate through hull breaches was…
Patch notesDear captains, There is a new patch available for update 2026.1. Changelog: Type IX: - Fix: Gyrocompass on the conning tower was missing. - Fix: Type IXC/40 had a few spots with a wrong texture on the deck. - Fix: Sailors assigned to the…
Patch notesDear captains, There is a new patch available for update 2026.1. Changelog: Localization: - Russian localization update by Hard. Type IX: - Fix: Sometimes aircraft could be detected on the surface, while playing with Type IXC or Type…
Patch notesDear captains, There is a new patch available for update 2026.1. Changelog: Localization: - Russian localization update by Hard. - Japanese localization update by かねのもうじゃ. - Fix: Resolved issue with cyrillic characters in settings and the…
Patch notesDear captains, There is a new patch available for update 2026.1. Changelog: Type IX: - Fix: After installing an anti-radar coated snorkel, the boat upgrade UI was still claiming that the normal snorkel was installed instead. - Fix: Some…
Patch notesDear captains, There is a new patch available for update 2026.1. Changelog: Type IX: - Added Type IXC NPC U-boats to the game. - Fix: Conning tower upgrade options weren't appearing on Type IXC U-boats. - Fix: AA guns on Turm II and Turm IV…
Patch notesDear captains, There is a new patch available for update 2026.1. Changelog: Type IX: - Fix: Snorkel wasn't refreshing air correctly on Type IX. - Fix: Several campaign objectives weren't available for Type IX. Ships: - Fix: Wrong highlight…
Patch notesDear captains, There is a new patch available for update 2026.1. Changelog: Type IX: - Fix: Improved flooding water meshes inside compartments to fix water flickering on the other side of some walls. - Fix: Corrected icon position for the…
Patch notesDear captains,There is a new patch available for update 2026.1. Changelog:Type IX:- Fix: Two compartments had mismatched shape of flooding water mesh, not matching the shape of the compartments.- Fix: Captain's cabin folded doors were…
Patch notesDear captains,There is a new patch available for update 2026.1. Changelog:Type IX:- Fix: Type IX family wasn't appearing in U-boat picker UI in old saves.- Fix: Pathing issue near one of the tables, that could make a sailor stuck.Physics…
Patch notesDear captains,There is a new patch available for update 2026.1. Changelog:Weather:- Fix: Discrepancies between weather forecasts and actual weather.- Fix: Cloudy weather and rain were too rare.Tutorials:- Fix: Tutorial highlight could be…
Patch notesDear Captains,There is a new patch available for update 2026.1. If this patch causes issues, please try to verify game files integrity as described in this article:Steam Support :: Verify Integrity of Game FilesLocalization:- Fix: Added…
Patch notesDear Captains,There is a new patch available for update 2026.1. Changelog:UI:- Fix: Portraits could be missing in the section view, if several steps were done, involving port menu.- Fix: If HQ view was toggled while port menu was active…
Patch notesDear captains,There is a new patch available for update 2026.1. Changelog:Save compatibility:- Fix: After loading any save from a previous version of the game, the center of mass of the U-boat was off until the U-boat was swapped to another…
Patch notesDear captains,There is a new patch available for update 2026.1. Changelog:Type IX:- Fix: Type IX family was missing from the ship selector UI, after talking with the flotilla commander about a new U-boat.General:- Fix (regression): Changing…
Patch notesDear captains,There is a new patch available for update 2026.1. Changelog:Type IX:- Fix: Type IXA and Type IXC/40 were using wrong geometry for snorkels.General:- Fix: Added silhouettes for HDML and Royal Oak.- Fix: Screen could become…
Patch notesDear captains, The day has finally come. Type IX: Distant Coasts and the free Update 2026.1 are live. After months of extra work, testing and polish, we're proud to finally hand you the keys to the Kriegsmarine's most ambitious ocean-going…
nihilcatDear Captains! We are very pleased to announce a unique collaboration - UBOAT has officially arrived at Ship Graveyard Simulator 2- Submarines DLC! 💥 Our iconic submarine model is now available as a free content update for all owners of the…
darek_playwayDear Captains,We have made the tough decision to move the release date for the Type IX: Distant Coasts DLC and the free Update 2026.1 from January 29th to April 17th.We understand that a delay is never good news, especially so close to the…
nihilcatDear captains,We are back with a new development blog! This time it's a long one.As always, we’ve been working hard on the next updates for UBOAT. Let’s dive into the details.Type IXWe are wrapping up work on the Type IX family, which will…
nihilcatDear captains,We are back with a new development blog! As always, we’ve been working hard on the next updates for UBOAT. Let’s dive into the details.UBOAT on Xbox Series X|S and PlayStation 5We are excited to announce that Ultimate Games…
nihilcatDear Captains, After releasing two updates earlier this year, we’re now dedicating ourselves full-time to the next free update and the Type IX DLC, which we plan to launch together. This work will still take several months, but we wanted to…
nihilcatDear captains, There is a new patch available for version 2025.1.1. Localization: - Russian localization update by Hard. UI: - Fix: In some languages, AOB, distance, and velocity values were missing from the subtitles when an officer used…
Patch notesDear captains, A new patch for version 2025.1.1 is now available, featuring a few additional fixes following the earlier public test. Thank you to everyone who participated in testing and provided valuable feedback! Localization: - Czech…
Patch notesDear captains, A new patch for version 2025.1.1 is now available on the "unstable" branch. This build is intended for preliminary testing of introduced fixes and improvements. Localization: - Czech localization update by Spid3rCZ. Crew…
Patch notesDear captains, There is a new patch available for version 2025.1.1. General: - Fix (regression of 2025.1.1 Patch 1): Binoculars were not aligned with the player's viewing direction in first-person perspective after being toggled on. - Fix…
Patch notesDear captains, There is a new patch available for version 2025.1.1. Localization: - Japanese localization update by かねのもうじゃ. - Russian localization update by Hard. Periscope: - Fix: The internal stabilization system for periscopes has been…
Patch notesDear Captains, We are pleased to announce that the next update for UBOAT is now available for download. Below is a quick overview of the changes included. Reworked Deck Awash Mode We've reworked the deck awash mode to provide a more…
nihilcatDear captains, There is a new patch available for version 2025.1. Crew: - Decreased the wind speed threshold at which the crew closes the external hatch when external hatch management is enabled. Previously, there was a range of weather…
Patch notesDear captains, There is a new patch available for version 2025.1. Localization: - French localization update by FvJ and Placebo. - Russian localization update by Hard. - Japanese localization update by かねのもうじゃ. - German localization update…
Patch notesDear captains, There is a new patch available for version 2025.1. UI: - Fix: Issue with not being able to move a milk cow to another square in HQ. Missions: - Fix (regression of 2025.1 Patch 9): Warning shots above the huts in Hopen Island…
Patch notesDear captains, There is a new patch available for version 2025.1. Localization: - Japanese localization update by かねのもうじゃ. - French localization update by FvJ and Placebo. Crew: - Added new orders that allow to carry a wounded sailor to…
Patch notesDear captains, There is a new patch available for version 2025.1. Localization: - French localization update by FvJ and Placebo. - Chinese localization update by Alex Zheng, JM-LeiDao, 36 D, Xenon_Tennessee, 人生多忐忑, 肚子困脑袋饿, Parrot with…
Patch notesDear captains, There is a new patch available for version 2025.1. Localization: - Ukrainian localization update by vovanvoks. - Russian localization update by Hard. Sinking credit: - Added a new realism setting called "Sinking credit…
Patch notesDear captains, There is a new patch available for version 2025.1. Localization: - German localization update by Ruby. Damage model: - Starting with this version, once a ship’s crew is evacuating, the ship is credited and counted towards GRT…
Patch notesDear captains, There is a new patch available for version 2025.1. Localization: - Spanish localization update by Miguel Haakon. Damage model: - It's now easier to sink motor torpedo boats with guns. Missions: - A spare packet of mines in…
Patch notesDear captains, There is a new patch available for version 2025.1. Ships: - Fix (regression of 2025.1): Enemy ships were sometimes firing their guns at an U-Boat remaining at a periscope depth. Crew: - Officers tasked with attacking other…
Patch notesGood news - we’ve got a brand-new bundle for you! 🛠️⚓ This package takes you from repairing rally cars to commanding submarines in tense underwater missions. Perfect for those who love detailed mechanics and strategic challenges, this…
darek_playwayDear captains, There is a new patch available for version 2025.1. Localization: - Russian localization update by Hard. - Japanese localization update by かねのもうじゃ. Damage model: - Ship hulls may now break or damage, if their center of mass…
Patch notesDear captains, There is a new patch available for version 2025.1. General: - It's no longer a requirement to see how ship sinks completely to get a credit for it. We now make the assumption that the commander eventually confirms it in one…
Patch notesDear captains, There is a new patch available for version 2025.1. Localization: - Ukrainian localization update by vovanvoks. - German localization update by Ruby. Damage model: - Adjustments based on the feedback: Ships sink faster on the…
Patch notesDear captains, We hope that you had a good start to the New Year 2025! 🎆 We are happy to announce that the next update for UBOAT is now ready to download. Below is a quick overview of the changes shipped with it. Damage simulation Following…
nihilcatDear captains, There is a new patch ready for version 2024.1. Crew: - Fix: Officer using AA gun on Type II U-boats could become invisible for the time of using it in certain circumstances. - Fix: In rare cases, it wasn't possible to assign…
Patch notesDear captains, There is a new patch ready for version 2024.1. Crew: - Added new recordings for announcing an alarm by the officers when enemy ships or aircraft are spotted. - Added new emergency voice variants for order confirmations during…
Patch notesDear captains, There is a new patch ready for version 2024.1. Localization: - French localization update by FvJ and Placebo. - Russian localization update by Hard. Crew: - Fix: If a button for viewing tuberculosis event was quickly clicked…
Patch notesEverything Steam lists as add-on content for this game, newest first. Prices are left out on purpose: the store answers this page in one currency and it is not the reader's.
| Name | Platforms | Released |
|---|---|---|
| UBOAT - Type IX: Distant Coasts | Windows | 17 Apr 2026 |
| UBOAT - Supporter Pack | Windows | 02 Aug 2024 |
What Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | UBOAT Launcher.exe | windows |
The folders Steam Cloud syncs. The root is a token Steam uses for a location on your own machine, not a path this page can know.
| Root | Folder | Files |
|---|---|---|
WinAppDataLocalLow | Deep Water Studio/UBOAT/Saves | *.save |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPay[email protected]0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG