- Update v2026.1 Patch 20:
- 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, it wasn't possible to assign helpers to him to man the other two AA guns.
- UI:
- - Added a display of a type of U-boat to save/load screens. It appears for new save files.
- Crew:
- - Fix: Officers were sometimes disappearing after sitting on a bunk.
- AI:
- - Fix: Issue with some ships stopping in the middle of ocean.
- Graphics:
- - Fix: Toggling red lighting inside U-boat no longer makes screen brighter outside, when darker nights are off. In this mode nights are already bright enough to see clearly and it was often overexposing them.
- Ports:
- - Fix: The ceiling was sometimes disappearing without a reason over a few pens in Brest.
- General:
- - Fix: Fixes to Royal Oak hull splitting.
- - Fix: Resolved one game freeze issue caused by the recent water physics optimizations.
- Update v2026.1 Patch 19:
- Type IX:
- - Fix: Conning tower damages were sometimes rendered as see-through holes with nothing underneath.
- - Fix: Resolved issues with conning tower hatches being hard to highlight in FPP.
- Missions:
- - Fix: Issue with some missions not being marked as complete. They could keep weather permanently locked in a fixed state. Added code that retroactively fixes this problem in old saves.
- - Fix: If Python was sunk by HMS Dorsetshire, then it wasn't possible to complete the objective about taking survivors from it on board - the objective wasn't progressing after rescuing them.
- Graphics:
- - Fix: Volumetric lights outside U-boat were changing their intensity a bit, depending on the color of lighting inside the U-boat.
- - Fix: Screen no longer becomes brighter during story sequences when red lighting is enabled inside the U-boat. It was making some of them overexposed.
- - Fix: Patched code path that could technically cause the purple eye issue.
- UI:
- - Fix: Bearing display in binoculars could be frozen (or missing), if there was an officer assigned to UZO and we clicked the manual mode button on the portrait of another officer who was performing observation at the bridge.
- General:
- - Decreased depth at which U-boats can receive radio transmissions.
- - Fix: Clicking on the "Wait for convoy" button now opens up the new UI for waiting. It works more reliably than the old code that was still wired there, that could make the convoy appear around the U-boat.
- Update v2026.1 Patch 18:
- Type IX:
- - Fix: Ensured compatibility of camouflages with the conning towers.
- - Fix: In existing saves, the issue with missing geometry under the stern loading hatch for loading torpedoes was still occurring.
- - Fix: Bearing display was frozen on the additional periscope in Type IXA.
- Type VII:
- - Fix: Resolved an issue with extra torpedo slots in the bow torpedo room in old saves.
- - Fix: Resolved an issue with two torpedoes visible on the sky in old saves.
- Ships:
- - Fix: Decreased evacuation thresholds on Dido-class, the crew was staying on the ship even when it was leaned quite a lot to the side.
- Missions:
- - Fix: If transmission from HQ after meeting Atlantis was not received in time in the Cape Town patrol, then the mission could become stuck.
- - Fix: If time compression was used at one point in the story in Enigma mission, then the screen could fully fade to black until escape was pressed.
- General:
- - Fix (regression of Patch 17): The captain was ordering to stop the engines when first goods were ordered in a port.
- Update v2026.1 Patch 17:
- 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 VII:
- - Fix: Resolved glowing texture error on Turm 0 on Type VII U-boats near ports.
- - Fix: Navigation lights stopped to work on Turm 0 on Type VII.
- UI:
- - Slider in time skip UI is now smoothly animated instead of jumping in steps when time skipping is used on the open sea.
- - Fix: If time skipping was initiated while any story sequence was open (for example during Python story sequence or after meeting a milk cow), it was breaking the UI and the time skip didn't work.
- - Fix: Survivors from sunk NPC U-boats had a placeholder white icon on the list where usually a class is displayed.
- - Fix: Only one pointer on the UI telegraph was moving to stop engines order after U-boat was automatically stopped for loading a cargo from another ship on the sea.
- - Fix: Notification about missing spare parts was appearing when the last spare parts were moved between storage slots.
- - Fix: Notification about missing spare parts wasn't appearing when spare parts were discarded by dropping them to the sea.
- Crew:
- - Fix: Sailors working on loading an external torpedo were appearing on U-boat's bow after saving & reloading a save file.
- General:
- - Memory usage optimizations.
- - Fix: It was possible to send crew to some German ships appearing during campaign missions like Atlantis after attacking any ally and being considered an enemy.
- - Fix: Fixes to some errors spotted in player logs.
- Update v2026.1 Patch 16:
- 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 considerably decreased to compensate for the fact that enemies are much better now at dropping depth charges and to some degree also hitting the U-boat with guns on the surface.
- Physics:
- - Fix: Ships with long and narrow shape like F-class destroyers could be thrown out of the water, if 140x time compression was used in the side view and they had their rudders turned fully.
- Resupply:
- - U-boat is now automatically stopped when cargo loading from another ship starts.
- - Fix: The ship from which cargo is loaded is also stopped for the duration of resupply. Some resupply ships could leave the area during resupply.
- - Fix: When resupply was cancelled by starting the engines, the resupply was cancelled correctly, but some UI elements indicated like it would be still ongoing.
- - Fix: Resupply was being cancelled when an order to charge batteries was issued.
- UI:
- - All reports in the crew log are now timestamped with a local time.
- - Added a notification to the crew log about time zone changes.
- Crew:
- - Fix (regression): "Merchant" skill wasn't working as declared in 2026.1 Patch 14.
- Missions:
- - Fix: It wasn't possible to resupply at Python, if an additional resupply was requested during Cape Town patrol.
- General:
- - Fix: Small issues in the code noticed in player logs.
- Update v2026.1 Patch 15:
- 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 officer using one of the AA guns on Turm IV weren't using the other guns.
- - Fix: 43U gun (the four barrel AA gun) on Turm IV couldn't be used in FPP. The officer was quickly stopping to use it after starting the action.
- Technical:
- - Memory usage improvements.
- General:
- - Fix: Periscope was sometimes instantly rotating somewhere else after locking a target.
- Update v2026.1 Patch 14:
- Localization:
- - Russian localization update by Hard.
- Type IX:
- - Fix: Sometimes aircraft could be detected on the surface, while playing with Type IXC or Type IXC/40, even though U-boat was submerged below periscope depth and had no means of detecting them.
- - Fix: Diesel engines often continued to be animated after switching to electric motors.
- Ports:
- - Fix: If tide was very low, it could be problematic to leave or dock at Penang.
- Missions:
- - Fix: Missing translation on one objective in Join Monsoon Group mission.
- Crew:
- - Fix: Merchant skill no longer requires the officer to do trade personally, it's enough to have him among the crew.
- Graphics:
- - Fix (regression of 2026.1 Patch 13): Some face shapes were looking wrong, since the last patch.
- General:
- - Fix: It was possible for the camera to get stuck between port menu and map (disabling one was toggling on the other).
- - Fix: U-boat was sometimes surfacing after loading a save file, even though no such order was given at the time of saving it.
- - Fix: It wasn't possible to skip time when enemy pontoons were nearby.
- - Fix: Surrendering and scuttling the U-boat at the end of the war wasn't working.
- Update v2026.1 Patch 13:
- Localization:
- - Russian localization update by Hard.
- - Japanese localization update by ã‹ãã®ã‚‚ã†ã˜ã‚ƒ.
- - Fix: Resolved issue with cyrillic characters in settings and the port menu.
- Missions:
- - Fix: It was possible for the mission script to get stuck after sinking HMS Dorsetshire in Cape Town patrol.
- - Fix: In certain save files, the issue with not being able to pick campaign missions with Type IX could still remain.
- Ships:
- - Fix: Type VIIB NPC U-boats had a gap in their 3D geometry.
- Graphics:
- - Fix: Resolved an issue that could make character eyes pink after following a reproduction instruction.
- - Fix: Resolved one graphics-related CTD issue.
- General:
- - Fix: Port captain was disappearing after saving the game state and loading it back.
- - Fix: Resolved some of the most common errors spotted in the sent logs.
- Update v2026.1 Patch 12:
- 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 bulkheads weren't closed after issuing an order to close all bulkheads.
- - Fix: Crew pathing issues with some bulkheads closed.
- Ships:
- - Fix: Type VII NPC U-boats had a gap in their 3D geometry.
- Flotilla bases:
- - Fix: If a commemorative plaque was earned in a flotilla base, while playing with a U-boat that had a tiger and boat or clover emblem, then the plaque wasn't appearing and only the boat name was written where the plaque should be.
- Missions:
- - Fix: A placeholder message in Seehund distant patrol.
- General:
- - Fix: Crash while talking with port officers in certain saves.
- Update v2026.1 Patch 11:
- 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 couldn't be reloaded with new ammunition.
- - Fix: Wrong data was displayed in Overview screen in a few places (including a wrong armament name).
- Missions:
- - Fix: Issue that was causing the assignment summary screen to get stuck and stop progressing, while completing a distant patrol such as Eisbär.
- - Fix: In tutorial no. 2, if the tutorial destination happened to be in a relatively shallow location, it could be problematic to complete it.
- UI:
- - Fix: Operations Officer button was missing from the port menu after loading a save file saved with port menu open and a camera inside flotilla base. It was appearing only after leaving the flotilla base view and going there back.
- Update v2026.1 Patch 10:
- 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 mesh on LST ships.
- Missions:
- - Fix: Messages with new orders are now retransmitted during group patrols, such as Eisbär, when the first tranmission was missed. If the message wasn't received, it could make the mission stuck.
- - Fix: Selecting a new assignment on the sea wasn't working.
- Update v2026.1 Patch 9:
- 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 bridge activator.
- - Fix: Aft torpedo launchers could become blocked by crew slots that weren't physically blocking loading. This issue may persist for some time in saves or until the boat is changed to another type and back.
- Type II:
- - Fix: Buoyancy notification was calibrated wrong for Type II. When the boat's buoyancy was at its typical value on the surface, it was often reported in a range of 80% - 90% rather than 100%.
- - Fix: Tweaks to ballast tank no. 3.
- Ports:
- - Fix: Driver wasn't taking the captain to quarters in Helgoland without a bunker.
- Interactions:
- - Fix: Issues that could arise when interacting with a wreckage.
- - Fix: Decisions during some crew events, such as crew brawl, weren't correctly applied by the code and had no effects.
- Tutorials:
- - Fix: Tutorial no. 3 was becoming stuck during interaction with the second freighter.
- General:
- - Fix: Several errors in the code with minor side effects.
- Update v2026.1 Patch 8:
- 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 stopping to work after saving the game state and loading it back.
- - Fix: Echosounder button and knobs weren't interactable.
- - Fix: Occlusion culling precision issues in FPP, that were making some geometry to disappear with no apparent reason.
- Effects:
- - Fix: Nights were heavily overexposed when "Darker nights" setting was toggled off.
- - Fix: Pink texture could appear on heavily flooded compartments.
- General:
- - Fix: If a save was saved when TAB menu was open, then after loading it, screen was heavily blurred until TAB menu was used at least once.
- Update v2026.1 Patch 7
- 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:
- - Fix: Second race condition in physics code that was happening randomly and could have various side effects.
- Crew:
- - Fix: Captain could freeze after tuberculosis event. Automatic fixing of this issue in affected saves was added.
- - Fix: Vignette was remaining on the screen after a dialogue with a war correspondent.
- General:
- - Fix: It wasn't possible to save a game state after inspecting a neutral merchant ship.
- Update v2026.1 Patch 6:
- Weather:
- - Fix: Discrepancies between weather forecasts and actual weather.
- - Fix: Cloudy weather and rain were too rare.
- Tutorials:
- - Fix: Tutorial highlight could be missing inside the menu dropdown during tutorial no. 7, if tutorial was activated without using that menu earlier at any point.
- General:
- - Fix: After vacation, assignment selection screen was becoming stuck.
- - Fix: Resolved two issues that could prevent saving the game state.
- Update v2026.1 Patch 5:
- Localization:
- - Fix: Added missing translations to new loading hints.
- Physics:
- - Fix: Race condition in physics code that was happening randomly and could have various side effects.
- Story system:
- - Added voices to merchant ship captains.
- - Fix: If a merchant ship was evacuated and its cargo hold was searched, there was no cancel button available there and decision buttons that were available shouldn't be there.
- - Fix: If a story was played in an enclosed interior scene (for example a merchant ship's cargo hold) and the story UI was manually closed, then once the camera returned to the U-boat, ambient was often much more quiet than it should be. The issue was being resolved only after the story sequence was complete.
- General:
- - Fix: Issue that resulted in camera entering an invalid state after closing a port menu.
- - Fix: Issue where selecting a new assignment was resulting in UI remaining stuck on the assignment selection screen.
- - Fix: Several small errors with minor side-effects.
- Update v2026.1 Patch 4:
- 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, the port menu wasn't disappearing and there was UI overlap.
- Tutorials:
- - Fix: Issues with camera after starting tutorial no. 4.
- General:
- - Fix: If captain was in a flotilla base and U-boat undocked, the captain was not reacting to any orders afterwards.
- - Fix: HQ could clip with a flotilla base scene.
- - Fix: Wheels in a truck with supplies could still rotate after the truck stopped.
- Update v2026.1 Patch 3:
- 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 type (it's the 45 degree rotation bug).
- Type IX:
- - Fix: Snorkel was in a vertical orientation right after installing it.
- - Fix: On Type IXA and Type IXC, there was an extra ladder activator always visible in FPP that was meant to be visible only when Turm IV was installed on the boat. If it was used, it could make the character stuck.
- General:
- - Fix: If a boat type was unlocked by paying 1 ship upgrade point and then the details screen was left without switching to that boat, then after going back to the details view, it was necessary to pay 1 ship upgrade point again to actually switch to that boat type.
- Update v2026.1 Patch 2:
- 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 a U-boat to a new type was breaking the UI, if port menu was enabled in the settings.
- Update v2026.1 Patch 1:
- 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 locked after following these steps: opening map when port menu was active, undocking, leaving port area and toggling map off.