UBOAT update 2025.1 is now available to download on PC. According to the official UBOAT patch notes, the latest update 2025.1 addresses some bugs and crashes.
Previously, a major update 2025.1 added new changes, fixes, and gameplay improvements.
Unfortunately, players are still experiencing several issues since the release. Today’s UBOAT version 2025.1 will fix a few of these issues.
Check out more details below.
UBOAT Patch 2025.1 Notes – Feb. 23, 2025
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 by Ruby.
Missions:
- The tutorial missions can now be replayed multiple times.
- Fix: Resolved an issue that could prevent tutorial no. 4 from detecting when the player ordered the pump to be enabled, causing the tutorial to not progress.
U-Boat:
- It is now possible to manually open/close, flood/drain, and launch torpedoes from tube V on Type VII U-Boats.
- The “Fresh air” modifier for air quality has been split into two separate modifiers: ventilation through the air intake on the bridge and ventilation through the external hatch. Additionally, it now takes significantly longer to fully ventilate the boat.
- Active ventilation is now much more effective on the surface than under the water, as it actively brings fresh air into the boat (rather than only circulating it).
- Improved movement through the hatch from battery room no. 1 to the control room in FPP mode on Type VII U-Boats. Previously, the movement through the hatch sometimes wasn’t being triggered.
- The searchlight is now automatically turned off when the crew hides into the U-Boat during a dive.
- Navigation lights are now being enabled only when the U-Boat is near a friendly port or if friendly units are actually spotted.
- After starting a new game, the stern gyro angle receiver on Type VII now starts with a 180 degrees gyro angle set instead of 0 degrees. For the stern tubes, this angle means shooting straight ahead, making it a more appropriate starting value.
Crew:
- Added a new mechanic with standing orders for the crew, allowing automation of certain tasks. These orders can be toggled on and off in the “Crew” screen under the “Boat” tab. Currently, there are three available standing orders:
—– Air compressor management: When active, the crew will power on the air compressors whenever the reserves are not full.
—– Lighting management: The crew switches to red lights at night, blue lights during a silent run, and normal lights in all other cases.
—– Main exterior hatch management: The crew closes the hatch during rain and rough seas and opens it in all other conditions to improve ventilation. - Fix: Crew members could sometimes forget their movement path and stop executing their assigned orders when passing through a bulkhead that the player had ordered to be kept closed. When this issue was occurring, it could cause various side effects, such as the gyrocompass not being disabled after ordering a silent run or sonar decoys not being launched.
- Fix: The skipper would sometimes say, “Join the watch crew” without reason when a leader officer switched between the UZO and binoculars.
- Fix: If two crew members were ordered to open the same hatch, one would open it, but the second would close it again.
- Fix: Sailors would disappear from the conning tower and reappear on the deck after closing an external hatch following a direct order on certain U-Boat types.
- Fix: Sailors would sometimes close the external hatch from the wrong side. For example, a sailor on the bridge would sometimes descend into the conning tower instead of closing it directly from the bridge.
- Fix: If the player attempted to move a wounded sailor to bunks occupied by crew members playing cards, the warning message displayed did not accurately reflect the situation.
- Fix: Resolved a few minor issues with the sailor watching over the valves. After flooding the tanks, he was often leaving the station without a reason for a few seconds before coming back. Also, when an order was performed by him, an order bar was appearing in the global action queue in the corner of the screen, but it wasn’t disappearing later on until a view was changed to a different one.
UI:
- A warning is now displayed under the dive schedule if it is currently inactive, along with an explanation of how to activate it.
- Fix: The map can now be moved by clicking and dragging while selecting a destination square for a supply ship in the HQ.
- Fix: The rudder indicator in the upper-right part of the screen would sometimes rapidly switch between 0 and 1 degrees when the U-Boat was docked.
- Fix: After starting a dialogue with a lead officer, opening the reputation purchases menu, and then closing it, some UI elements would incorrectly appear during the dialogue, allowing unintended interactions that could break the UI.
- Fix: Resolved an issue where a damage notification would not disappear after all repairs were completed.
- Fix (regression of 2025.1): The “days later” label during quick travel was fading out along with everything else instead of remaining visible on the screen.
Technical:
- Improved performance in the section view, with more noticeable improvements at higher texture quality settings.
- It is now possible to rebind the interaction hotkey from “E” to any other key.
- Removed a few memory allocations that could be avoided.
- Fix: Resolved one issue that could interfere with saving the game state.
AI:
- Fix: Aircraft could, in rare cases, stop attacking the U-Boat without a clear reason.
Simulation:
- Fix: Removed a discontinuity in TDC calculations that could make the parallax correction dial flicker between two values. It was happening in edge cases, such as when attempting to compute a solution for the forward tubes and a target behind the U-Boat.
Graphics:
- Fix (regression of 2025.1 Patch 8): The U-Boat’s hull could become completely black after docking and having the external damages repaired.
- Fix: Explosion effects could in some cases not have a shader loaded and appear partially or fully purple.
General:
- Time compression and pause are now automatically disabled when entering an officer’s FPP mode (they can be toggled back).
- Fix: If the game was saved in an officer’s FPP mode (other than the skipper), it would often load in the skipper’s FPP mode instead.
- Fix: If the game was saved in FPP mode, then after loading it and opening the TAB menu, officer portraits could be missing from the menu. They would only appear later after switching views.
Download UBOAT update 2025.1 on PC.
