Foreword
Due to the substantial workload involved in developing the career framework, level configuration, and testing, we have decided to release the official 1.4 update in mid-February.
As for the core game updates, they include a large number of new parts, numerous bug fixes, and extensive optimization efforts. After undergoing a half-month stability test within the community, these changes are now ready for an official release.
We have therefore decided to roll out the above content in advance as Version 1.4 Beta, in order to improve the overall player experience.
Version Control Recommendations
You can switch versions in the Properties menu of your Steam library, choosing either Version 1.32 or the Public Test Branch.
The 1.4 Beta default release will only receive bug fixes in the near term. No additional updates will be made before the official Version 1.4 release in mid-February. This branch represents the most stable version.
The Public Test Branch is intended for ongoing testing of new mechanics and for collecting feedback on new content. At present, its content is identical to the stable release.
After collecting feedback and fixing any potential issues in the stable release, we plan to open early testing of the Career Campaign on the Public Test Branch around January 20, with new content being updated periodically before mid-February.
Note: The Career Campaign will undergo extensive adjustments during the testing phase. Career save files created in the test version may not be compatible with the official 1.4 release.
Optimization Projects
Major improvements to save file loading speed
General
Optimized CPU-heavy operations such as UV calculations
Added preloading for deck material resources
Optimized ship loading functions
Optimized buoyancy curve calculations
Optimized weapon loading
Optimized static loading, including improvements to RebuildMesh for adjustable hulls
Dock Scene
Reduced the number of materials used in the dock scene
Optimized mesh generation logic for vertex-edited hulls
Summary
On a personal mid-range PC, loading an ~8,000-part save in the dock scene was reduced from 4640 ms to 1700 ms, making dock loading 2.7× faster
Dynamic scene loading was reduced from 4290 ms (2309 ms + 1981 ms) to 2366 ms (1692 ms + 674 ms), nearly a 2× speedup
Major improvements to combat scene frame rate
General
Added screen-pixel-occupancy-based LOD; LOD currently applies in combat and sea trial scenes
Significantly reduced the performance cost of anti-aircraft weapons
Optimized wake/track rendering frame rate
Optimized draw time for shells, torpedoes, and other weapons
Optimized particle performance in combat
Optimized ocean height sampling functions
Optimized physics calculations
Optimized turret pathfinding algorithms
Optimized UI performance overhead
Summary
On a personal mid-range PC, in the mission Hunting Flagship Yamato:
Before optimization:
Early phase: ~60 FPS
Mid phase: ~40 FPS
After optimization:
Early phase: ~116 FPS
Mid phase: ~70 FPS
Overall frame rate improvement of approximately 2×
(Credit: Discord Worldoz )
General
Added AI torpedo range checks
When a target enters 80% of torpedo range, the AI will launch torpedoes.
Added ship loading failure notifications for all scenes
Fixed an issue where screenshots with non-transparent backgrounds contained semi-transparent pixels
Fixed an issue where using in-game text input fields could trigger other hotkey functions
Dock
Fixed an issue where creating an empty save that was not saved before entering Sea Trial would cause the empty save to be loaded again when returning to the dock
Fixed an issue where the bottom hotbar in the dock scene could not correctly assign custom parts
Fixed an issue where color-separated parts were not visible in Armor Mode
Fixed an issue where part paint was not restored when undoing a deleted part
Fixed an issue where the text showing vertex movement distance did not disappear when exiting vertex editing with the ESC key
Adjusted the generation angle for new ship save thumbnails
Gallery
Added independent ray tracing parameter controls for individual ships
Added the ability to adjust ship position and rotation while using the ray tracing renderer
Fixed an issue where the ray tracing renderer incorrectly rendered flags with transparency
Fixed an issue where Gallery presets could save ships that had already been deleted
Adjusted ship placement in the Gallery so that right-click can be used to cancel placement
（Credit: Discord Deviant）
Level
Added Airstrike Level
UK WWII Early
UK WWII Mid–Late
UK HellLoop
Adjusted
Reduced the number of enemy aircraft in all non-HellLoop Airstrike Level
Airfields in the Sea Trial scenario now display the player fleet’s flag
Fixed
Fixed an issue in the Battle Test IJN Escort Carrier campaign where the player spawn point was at the edge of the map
Fixed the ship name issue for Leninsky Komsomol in campaign scenarios
Fixed weapon configuration issues on Omaha-class ships in campaign scenarios
(Credit: 平子鱼)
Custom Color Segmentation System
Sailor and Civilian characters now support custom skins and outfit coloring.
The following parts can be customized: Hat, Brim, Skin, Collar, Tie, Clothes, Trousers, Footwear.
This system is still under development. Due to optimization considerations related to weapon part color segmentation, it currently supports character customization only.
Parts
Advanced weapon animation
Multi-Trunnion Elevation
Now supports weapon parts with multiple barrels
Weapon Component Linkage System
Weapon components can now shift position and rotate in response to elevation changes
Supports Gunsight Elevation Linkage
Supports Complex Rigid Linkage
These features currently apply only to vanilla parts and will be made available to mods after a future ModTool update.
Added
High-arc trajectory support for anti-ship missiles
(Credit: Discord Worldoz)
Added the following parts or variants
n990 | Grumman F6F 'Hellcat' Fighter (2000lb AN-M34 HE*1) |
n991 | Grumman F6F 'Hellcat' Fighter (1600lb AN-Mark 1 AP*1) |
n992 | Grumman F6F 'Hellcat' Fighter (MK 13-6 *1) |
n993 | Martin T4M-1 Torpedo Bomber |
n994 | Martin T4M-1 Torpedo Bomber (Mark 7 Mod 5A *1) |
n995 | Curtiss BF2C-1 “Goshawk” Fighter-Bomber |
n996 | Curtiss BF2C-1 “Goshawk” Fighter-Bomber (500lb AN-M64A1 HE *1) |
n997 | Grumman F7F-3 “Tigercat” Heavy Fighter |
n998 | Grumman F7F-3 “Tigercat” Heavy Fighter (2000lb AN-M34 HE*1) |
n999 | Grumman F7F-3 “Tigercat” Heavy Fighter (1600lb AN-Mark 1 AP*1) |
n1000 | Nakajima B6N2 "Tenzan" Mod.12 Attacker |
n1001 | Nakajima B6N2 "Tenzan" Mod.12 Attacker (800kg Type.99 No.80 AP *1） |
n1002 | Nakajima B6N2 "Tenzan" Mod.12 Attacker (250kg Type.99 No.25 HE *2) |
n1003 | Nakajima B6N2 "Tenzan" Mod.12 Attacker (Type 91 Model 3 *1) |
n1004 | Besson MB.411 Seaplane |
n1005 | Sikorsky CH-53K "King Stallion" Helicopter |
n1006 | British Aerospace “Sea Harrier” FRS.1 V/STOL Strike Fighter |
n1007 | British Aerospace “Sea Harrier” FRS.1 V/STOL Strike Fighter (1000 lb Mark.13 HE *3) |
n1008 | Grumman F7F-3 “Tigercat” Heavy Fighter (MK 13-6 *1) |
n1009 | India Arihant 3-Tubes Vertical Launch System [K-15 “Sagarika” SLBM] |
n1010 | Chinese HHQ-10 24-Tubes Missile Launcher [HHQ-10 SR-SAM] |
n1011 | British GWS.30 "Sea Dart" SAM System [Sea Dart Mod.0 Missile] |
n1012 | Italian 120mm/50 Ansaldo Modello 1926 (Modello 1926 Twin Mount) |
n1013 | Italian 100mm/47 OTO Modello 1928 (Modello 1928 Twin Mount) |
n1014 | German 127mm/45 SK C/34 (U.DrhL C/38 Twin Mount) |
n1015 | Soviet 130mm/50 Pattern 1936 (B-2LMT Twin Mount) |
n1016 | British 190mm/45 Armstrong Model 1908 (Twin Turret) |
n1017 | German 283mm/50 SK L/50 (Drh LC/10 Two-gun Turret) |
n1018 | German 283mm/50 SK L/50 (Drh LC/10 Two-gun Turret，Colored) |
n1019 | German 150mm/45 SK L/45 (MPL C/06 Casemate) |
n1020 | German 150mm/45 SK L/45 (MPL C/06 Casemate，Without Shield) |
n1021 | German 105mm/40 SK L/40 Mount (Shielded) |
n1022 | Sweden 120 mm/50 Model 1950 (Twin Turret) |
n1023 | Sweden 120 mm/50 Model 1950 (Twin Turret，Without Slide Rails) |
n1024 | American 76mm/50 Mark 3 (Mark 4 Single Mount) |
n1025 | American 102mm/50 Mark 9 (Mark 12 Single Mount) |
n1026 | 152mm/40 41st Year Type (Single Mount) |
n1027 | 152mm/40 41st Year Type (Single Mount，Without Shield) |
n1028 | French 203mm/50 Modèle 1924 (Modèle 1929 Twin Mount) |
n1029 | French 203mm/50 Modèle 1924 (Modèle 1929 Twin Mount，Without Deck) |
n1030 | American CXAM Radar |
n1031 | Italian E.C.3-ter "Gufo" Search Radar |
n1032 | 6.5 x 4.5 x 1.5m Ballast Tank |
n1033 | German Rotary Seaplane Catapult |
n1034 | American Crane II |
n1035 | American Crane III |
n1036 | German Winch I |
n1037 | German Winch I (Without Base) |
n1038 | German Winch II |
n1039 | German Winch II (Without Base) |
n1040 | Universal Winch Base I |
n1041 | Universal Winch Base II |
n1042 | German 400mm Scuttle |
n1043 | German 400mm Scuttle (Bottom-Hinged Blind Cover，Open) |
n1044 | German 400mm Scuttle (Bottom-Hinged Blind Cover，Close) |
n1045 | German 400mm Scuttle (Side-Hinged Blind Cover，Open) |
n1046 | German 400mm Scuttle (Side-Hinged Blind Cover，Close) |
n1047 | German 350x550mm Scuttle (Bottom-Hinged Blind Cover，Open) |
n1048 | German 350x550mm Scuttle (Bottom-Hinged Blind Cover，Close) |
n1049 | German 350x550mm Scuttle (Side-Hinged Blind Cover，Open) |
n1050 | German 350x550mm Scuttle (Side-Hinged Blind Cover，Close) |
n1051 | German Watertight Door I |
n1052 | German Watertight Door I (Without Drip Edge) |
n1053 | German Watertight Door II |
n1054 | German Watertight Door II (Without Drip Edge) |
n1055 | German Watertight Door III |
n1056 | German Watertight Door III (Without Drip Edge) |
n1057 | German Watertight Door IV |
n1058 | German Watertight Door IV (Without Drip Edge) |
n1059 | German Watertight Door V |
n1060 | German Watertight Door V (Without Drip Edge) |
n1061 | German Watertight Door VI |
n1062 | German Watertight Door VI (Without Drip Edge) |
n1063 | German Bollard I |
n1064 | German Bollard II |
n1065 | German Bollard III |
n1066 | German Bollard IV |
n1067 | German Bollard V |
n1068 | Anchor V |
n1069 | Anchor V (Shank) |
n1070 | Anchor V (Tripping palm) |
n1071 | 3m Deck Rail |
n1072 | 1.8m Deck Rail |
n1073 | 0.6m Deck Rail |
n1074 | Chinese Mushroom Ventilation Duct |
n1075 | Chinese Deck hatch (Da Lian) |
n1076 | Chinese Deck hatch (Da Lian，Locked) |
n1077 | Chinese Fire Hydrant (Da Lian) |
n1078 | Chinese Davit (Ding Yuan) |
n1079 | British Ventilation Duct (Cressy) |
n1080 | British Ventilation Duct (Cressy，Left) |
n1081 | British Ventilation Duct (Cressy，Right) |
n1082 | Japanese 17m Pinnace (Ceremonial Barge) |
n1083 | Japanese 14m Daihatsu |
n1084 | Japanese 13m Chuhatsu |
n1085 | Japanese 11m Motor Boat |
n1086 | Japanese 11m Motor Boat (Ceremonial Barge) |
n1087 | Skylight I |
n1088 | Skylight II |
n1089 | Skylight III |
n1090 | Horizontal V-shaped Structural Bracket |
n1091 | Trapezoidal Structural Bracket I |
n1092 | Trapezoidal Structural Bracket II |
n1093 | Trapezoidal Structural Bracket III |
n1094 | Trapezoidal Structural Bracket IV |
n1095 | Italian E.C.3-bis Search Radar |
n1096 | Soviet 25mm/79 110-PM (2M-3 Twin Mount) |
n1097 | Soviet 25mm/79 M-110 (2M-3M Twin Mount) |
n1098 | American 127mm/50 Mark 6 (Mark 9 Single Mount) |
n1099 | German Fairled I |
n1100 | German Fairled II |
n1101 | German Fairled III |
n1102 | American Bofors AA Gun Tub |
n1103 | American 1/2 Bofors AA Gun Tub (Fore) |
n1104 | American 1/2 Bofors AA Gun Tub (Aft) |
n1105 | American 1/4 Bofors AA Gun Tub (Fore) |
n1106 | American 1/4 Bofors AA Gun Tub (Aft) |
n1107 | Universal Hemispherical Shell |
n1108 | Universal Parabolic Shell |
n1109 | Universal 1/2 Hemispherical Shell |
n1110 | Universal 1/4 Hemispherical Shell |
Adjustments
Provided Multi-Trunnion Elevation and Weapon Component Linkage System support for the following parts
n91 | British 152mm/50 BL Mark XXIII (Mark XXIII Three gun Turret) |
n987 | German 37mm/83 Flak C/38 (3,7cm Turmlafetten Twin Turret) |
853 | British 40mm/39 Mark VIII "Pom-Pom" Gun(Mark VI Octuple Mount) |
854 | British 40mm/39 Mark VIII "Pom-Pom" Gun(Mark VIA Octuple Mount) |
855 | British 40mm/39 Mark VIII "Pom-Pom" Gun(RP 10 Mark VIA* Octuple Mount) |
Adjusted or fixed the following parts
ID | Name | Changes |
n116 | Japanese 100mm/65 Type 98 Twin Turret | The color of the gun cover was changed from white to khaki. |
n120 | Soviet 100mm/50 OTO Modello 1928 (Minizini Twin Mount) | Rewrite the name and descriptions |
n161 | Japanese 510mm/45 Prototype “A Gun” (Two-Gun Turret) | Rewrite the name and descriptions |
n240 | Japanese 127mm/50 3rd Year Type (Type B Single Mount) | Fixed the issue of the turret cover lacking color. |
n643 | American 127mm/54 Mark 16 (Mark 39 Single Turret) | Fixed the issue where this cannon was not listed in the dual-purpose cannon parts category. |
n902 | Italian 203mm/50 Model 1924 (Model 1924 Twin Turret) | Fixed the issue of high elevation angle clipping caused by incorrect barrel positioning. |
Rework the following parts models
n59 | Japanese 460mm/45 Type 94 Three-gun Turret |
n120 | Soviet 100mm/50 OTO Modello 1928 (Minizini Twin Mount) |
n150 | French 330mm/50 Modèle 1931 Quadruple Turret |
n161 | Japanese 510mm/45 Prototype “A Gun” (Two-Gun Turret) |
Apply smooth shading to the following models
n7 | 4 Blades Tiny Propeller |
n48 | 5 Blades Large Propeller |
n49 | 4 Blades Large Propeller |
n114 | 3 Blades Small Propeller |
n326 | British 102mm/45 QF Mark VC |
Adjusted the following parts
ID | Name | Changes | Before | After |
n91 | British 152mm/50 BL Mark XXIII (Mark XXIII Three gun Turret) | SpreadX | 4.9 | 4.3 |
n91 | British 152mm/50 BL Mark XXIII (Mark XXIII Three gun Turret) | SpreadY | 5.2 | 5.3 |
n94... | American 203mm/55 (All) | ReloadTime | 10 | 15 |
n94... | American 203mm/55 (New shells) | APDamage | 3800 | 4250 |
n116 | Japanese 100mm/65 Type 98 | SpreadX | 5.9 | 5 |
n116 | Japanese 100mm/65 Type 98 | SpreadY | 6.3 | 6.9 |
n120 | Soviet 100mm/50 OTO Modello 1928 | MaxAngle | 70° | 78° |
n120 | Soviet 100mm/50 OTO Modello 1928 | VerticalTraverse | 25°/s | 7°/s |
n120 | Soviet 100mm/50 OTO Modello 1928 | Traverse | 25°/s | 13°/s |
n120 | Soviet 100mm/50 OTO Modello 1928 | ReloadTime | 7.5 | 6 |
n120 | Soviet 100mm/50 OTO Modello 1928 | MaxRange | 14000 | 19570 |
n120 | Soviet 100mm/50 OTO Modello 1928 | HEDamage | 1000 | 1080 |
n120 | Soviet 100mm/50 OTO Modello 1928 | SpreadY | 13.1 | 7.3 |
n137... | British 203mm/50 | ReloadTime | 12秒 | 14秒 |
n138 | Italian 203mm/53 | ReloadTime | 15秒 | 17秒 |
n139... | American 203mm/55 (Early shells) | APDamage | 3950 | 3350 |
n140... | German 203mm/60 | HEDamage | 3000 | 3150 |
n144... | Japanese 203mm/50 | ReloadTime | 12 | 15 |
n144... | Japanese 203mm/50 | HEDamage | 3240 | 3150 |
n144... | Japanese 203mm/50 | APDamage | 3960 | 3850 |
n178 | Japanese 120mm/45 3rd Year Type | SpreadX | 7.8 | 6.3 |
n178 | Japanese 120mm/45 3rd Year Type | SpreadY | 9.2 | 7.9 |
n178 | Japanese 120mm/45 3rd Year Type | HEDamage | 1200 | 1440 |
n178 | Japanese 120mm/45 3rd Year Type | APDamage | 1941 | 1500 |
n179 | Japanese 120mm/45 10th Year Type | SpreadX | 7.2 | 6.3 |
n179 | Japanese 120mm/45 10th Year Type | SpreadY | 8.1 | 7.9 |
n179 | Japanese 120mm/45 10th Year Type | HEDamage | 1400 | 1440 |
n179 | Japanese 120mm/45 10th Year Type | APDamage | 1800 | 1500 |
n233... | French 100mm/45 Modèle 1933 | SpreadY | 10.8 | 8 |
n862 | British 102mm/45 BL Mark.IX (T.I. Mark. I) | SpreadX | 7 | 7.2 |
n862 | British 102mm/45 BL Mark.IX (T.I. Mark. I) | SpreadY | 6.3 | 6.4 |
n660 | British 102mm/45 QF Mark XVI* | SpreadX | 6.3 | 6.8 |
n326 | British 102mm/45 QF Mark VC | SpreadX | 8.5 | 7 |
n326 | British 102mm/45 QF Mark VC | SpreadY | 8.4 | 6.3 |
n393 | German 105mm/40 SK L/40 | SpreadX | 6.3 | 7.3 |
n393 | German 105mm/40 SK L/40 | SpreadY | 6.5 | 8 |
n443 | Japanese Type21 Radar Mod4 | Radar rotation speed | 1.5° | 20° |
n458 | Soviet 100mm/56 B-34 | SpreadX | 6.1 | 5.8 |
n458 | Soviet 100mm/56 B-34 | SpreadY | 6.8 | 6.7 |
n461.... | Japanese 203mm/50 | HEDamage | 2700 | 2950 |
n461.... | Japanese 203mm/50 | APDamage | 3000 | 3350 |
n627 | French 100mm/55 Modèle 1945 | SpreadX | 5.4 | 5.6 |
n640 | American 76mm/50 Mark 10 | SpreadX | 4.5 | 6 |
n640 | American 76mm/50 Mark 10 | SpreadY | 6.3 | 7.8 |
n847... | German 127mm/45 SK C/34 | SpreadY | 7.5 | 6.2 |
n896 | French 305mm/45 Modèle 1906 | SpreadX | 4.1 | 4.8 |
n896 | French 305mm/45 Modèle 1906 | SpreadY | 5.5 | 6.7 |
n897 | French 240mm/50 Modèle 1902 | SpreadX | 4.2 | 4.5 |
n897 | French 240mm/50 Modèle 1902 | SpreadY | 5.2 | 7 |
n898 | French 75mm/62.5 Modèle 1908 | SpreadX | 4.4 | 5 |
n898 | French 75mm/62.5 Modèle 1908 | SpreadY | 5.8 | 7.7 |
n939 | German 75mm Heavy Naval-gun | SpreadX | 5 | 5.5 |
Aircraft
Added engine vectoring animations for VTOL fixed-wing aircraft.
Fixed an issue where the tailwheel of n676 Grumman F3F “Gulfhawk” did not touch the ground after placement.
Adjusted the animation curves of propeller-driven aircraft slightly.
Adjusted n680 Hawker “Sea Hurricane” to add catapult-assisted seaplane takeoff support.
(Credit: Discord LakV)