feat(i18n): Russian, Ukrainian, Chinese, Japanese, Korean + non-Latin font pipeline

README.md

@@ -49,7 +49,7 @@ Design your ship block by block, fly real system-scale routes, dock at space sta
 *   **The VEGA Protocol:** An optional story campaign narrated by your ship's AI companion.
 *   **Windows & Linux:** Native desktop clients — no Wine/Proton needed (an experimental macOS build exists too).
 *   **Keyboard, mouse & controller:** Play with keyboard + mouse or an Xbox/XInput gamepad — both work at once, and menus are pad-navigable (controller support is experimental).
-*   **Play in your language:** the whole game is localized in **English, German, French, Spanish, Italian, Portuguese, Polish, Turkish and Dutch** — and community translations are welcome (see [docs/developer/TRANSLATION_GUIDE.md](docs/developer/TRANSLATION_GUIDE.md)).
+*   **Play in your language:** the whole game is localized in **14 languages** — English, German, French, Spanish, Italian, Portuguese, Polish, Turkish, Dutch, Russian, Ukrainian, Japanese, Korean and Simplified Chinese — and community translations are welcome (see [docs/developer/TRANSLATION_GUIDE.md](docs/developer/TRANSLATION_GUIDE.md)).
 
 ## 🕹️ Ways to Play
 
@@ -145,9 +145,9 @@ Want to see your name here? See **[CONTRIBUTING.md](CONTRIBUTING.md)**.
 > [docs/developer/ARCHITECTURE.md](docs/developer/ARCHITECTURE.md) and every developer doc is indexed in
 > [docs/developer/README.md](docs/developer/README.md). (The original German requirement specs under `plans/`
 > were consolidated and removed.)
-> Docs and code comments are **English**. In-game text is **localized — English, German, French, Spanish,
-> Italian, Portuguese, Polish, Turkish and Dutch are complete** (Italian: community translation by
-> Francesco Quirino, machine-topped-up)
+> Docs and code comments are **English**. In-game text is **localized in 14 complete languages — English,
+> German, French, Spanish, Italian, Portuguese, Polish, Turkish, Dutch, Russian, Ukrainian, Japanese,
+> Korean and Simplified Chinese** (Italian: community translation by Francesco Quirino, machine-topped-up)
 > (see [docs/developer/TRANSLATION_GUIDE.md](docs/developer/TRANSLATION_GUIDE.md)).
 
 ## Project Status
@@ -419,8 +419,8 @@ colored-light building, **low-tech furniture** (bed, campfire, chairs you can ac
 **player-paintable 32×32 block designs**, in-game customization (avatar pixel-face editor,
 content/ship/station editors), an in-game **Codex wiki + data-cube arcade minigames**, a built-in
 **music library**, the VEGA ship-AI onboarding/advisor companion, world-creation options, and an
-optional LLM backend for dynamic dialogue/mission text — all of it playable in **English, German,
-French, Spanish, Italian, Portuguese, Polish, Turkish and Dutch**. Self-hostable dedicated server. **Native Windows and Linux**
+optional LLM backend for dynamic dialogue/mission text — all of it playable in **14 languages, from
+English and German to Japanese and Simplified Chinese**. Self-hostable dedicated server. **Native Windows and Linux**
 clients (no Wine/Proton; an experimental macOS build exists), and **opt-in automatic crash reporting**
 so problems get fixed faster.
 Currently **1739 xUnit tests pass** (1545 server/shared + 194 headless client<->server).

TODO.md

@@ -12,7 +12,7 @@ CI runs two tiers: PRs skip the tests marked `[Trait("Category", "Slow")]`; push
 tests in Release, and a per-test duration guardrail (`scripts/check-test-durations.py`, PRs only) fails the gate when a non-Slow test exceeds 120 s.
 The server suite is sharded across a 4-runner matrix (`scripts/partition-tests.py` + checked-in weights; `Tests passed` is the required fan-in check) — PR gate ~4½ min.
 **Conventions:** English docs/comments; in-game text localized via locale keys — EN+DE mandatory-complete,
-FR/ES/PT/PL/TR/NL machine-first-pass, IT community + machine top-up (see docs/developer/TRANSLATION_GUIDE.md); commit to `main` with the
+FR/ES/PT/PL/TR/NL/RU/UK/ZH/JA/KO machine-first-pass, IT community + machine top-up (see docs/developer/TRANSLATION_GUIDE.md); commit to `main` with the
 Claude `Co-Authored-By` trailer; OpenAI texture + ElevenLabs sound generation is blanket-approved
 (no per-batch gate).
 
@@ -7539,6 +7539,23 @@ is **pre-approved** (keys in `tools/ai-assets/.env`, run via `uv`).
 
 ---
 
+## ✅ Done (2026-08-10): Russian, Ukrainian, Chinese, Japanese, Korean + the non-Latin font pipeline (#886–#889, #891)
+
+The last five languages from the localization push, and the font work that unblocks them: Rajdhani
+covers Latin (+ Devanagari) only, so Cyrillic/CJK strings had no glyphs at all — the blocker recorded
+in all five issues. Now `UiKit.Font`'s Rajdhani carries a `fallbackFontReferences` chain (legacy
+TrueTypeFontImporter): **Noto Sans Medium** (full Latin/Greek/Cyrillic, 620 KB — covers ru/uk incl.
+ґ/є/і/ї) → **Noto Sans CJK SC/JP/KR Medium subsets** built with pyftsubset from exactly the glyphs the
+translations use (+ CJK punctuation U+3000-303F and fullwidth forms; 794/812/196 KB instead of ~16 MB
+each — the WebGL bundle grows ~2.4 MB, not ~50 MB). OFL license files ship next to the fonts like
+Rajdhani's. Locale files: 3048/3048 keys + story packs (68/68) each, `locale_report.py --check` clean;
+prompt carries per-language register hints (ru/uk informal, ja です/ます, ko 해요체). Full Step-4 wiring.
+⚠ Known limits, tracked in the issues at close: CHAT INPUT of CJK characters outside the subset shows
+tofu on WebGL (desktop falls back to OS fonts); native review + on-screen overflow spot-check pending —
+CJK/Cyrillic strings run long and the machine register needs a native ear before marketing the locales.
+
+---
+
 ## ✅ Done (2026-08-09): Polish + Turkish full machine first pass; Italian machine-topped-up (#884, #885, #625)
 
 Same drill as Portuguese (#883), now cheap thanks to the parallel translate pipeline: `pl.json` and

ai-backend/app/llm.py

@@ -55,6 +55,11 @@
     "pl": "Polish",
     "tr": "Turkish",
     "nl": "Dutch",
+    "ru": "Russian",
+    "uk": "Ukrainian",
+    "zh": "Simplified Chinese",
+    "ja": "Japanese",
+    "ko": "Korean",
 }
 
 

client/Assets/BlocksBeyondTheStars/Scripts/AppShell.cs

@@ -1010,6 +1010,31 @@ private GameObject BuildContentErrorUi()
                     bodyText = "Het laden van de spelgegevens is mislukt. Controleer je internetverbinding of de installatie en probeer het daarna opnieuw.";
                     retryText = "Opnieuw proberen";
                     break;
+                case "ru":
+                    titleText = "Не удалось загрузить контент";
+                    bodyText = "Не удалось загрузить данные игры. Проверь подключение к интернету или установку и попробуй ещё раз.";
+                    retryText = "Повторить";
+                    break;
+                case "uk":
+                    titleText = "Не вдалося завантажити вміст";
+                    bodyText = "Не вдалося завантажити дані гри. Перевір з'єднання з інтернетом або встановлення і спробуй ще раз.";
+                    retryText = "Спробувати ще раз";
+                    break;
+                case "zh":
+                    titleText = "内容加载失败";
+                    bodyText = "游戏数据加载失败。请检查网络连接或安装情况，然后重试。";
+                    retryText = "重试";
+                    break;
+                case "ja":
+                    titleText = "コンテンツを読み込めませんでした";
+                    bodyText = "ゲームデータの読み込みに失敗しました。インターネット接続またはインストールを確認して、もう一度試してください。";
+                    retryText = "再試行";
+                    break;
+                case "ko":
+                    titleText = "콘텐츠를 불러오지 못했습니다";
+                    bodyText = "게임 데이터를 불러오지 못했습니다. 인터넷 연결이나 설치 상태를 확인한 뒤 다시 시도해 주세요.";
+                    retryText = "다시 시도";
+                    break;
                 default:
                     titleText = "Content failed to load";
                     bodyText = "Loading the game data failed. Check your internet connection or the install, then try again.";

client/Assets/BlocksBeyondTheStars/Scripts/ClientSettings.cs

@@ -597,6 +597,12 @@ public static ClientSettings Load()
                     SystemLanguage.Polish => "pl",
                     SystemLanguage.Turkish => "tr",
                     SystemLanguage.Dutch => "nl",
+                    SystemLanguage.Russian => "ru",
+                    SystemLanguage.Ukrainian => "uk",
+                    SystemLanguage.ChineseSimplified => "zh",
+                    SystemLanguage.Chinese => "zh",
+                    SystemLanguage.Japanese => "ja",
+                    SystemLanguage.Korean => "ko",
                     _ => "en",
                 };
 

client/Assets/BlocksBeyondTheStars/Scripts/StreamingAssetsCache.cs

@@ -41,10 +41,15 @@ public static class StreamingAssetsCache
             "locales/es.json",
             "locales/fr.json",
             "locales/it.json",
+            "locales/ja.json",
+            "locales/ko.json",
             "locales/nl.json",
             "locales/pl.json",
             "locales/pt.json",
+            "locales/ru.json",
             "locales/tr.json",
+            "locales/uk.json",
+            "locales/zh.json",
             "minigames/catalog.json",
             "missions.json",
             "planets.json",
@@ -66,10 +71,15 @@ public static class StreamingAssetsCache
             "stories/vega_protocol/locales/es.json",
             "stories/vega_protocol/locales/fr.json",
             "stories/vega_protocol/locales/it.json",
+            "stories/vega_protocol/locales/ja.json",
+            "stories/vega_protocol/locales/ko.json",
             "stories/vega_protocol/locales/nl.json",
             "stories/vega_protocol/locales/pl.json",
             "stories/vega_protocol/locales/pt.json",
+            "stories/vega_protocol/locales/ru.json",
             "stories/vega_protocol/locales/tr.json",
+            "stories/vega_protocol/locales/uk.json",
+            "stories/vega_protocol/locales/zh.json",
             "stories/vega_protocol/story.json",
             "wiki/articles.json",
         };

client/Assets/Resources/fonts/NotoSans-OFL.txt

@@ -0,0 +1,93 @@
+Copyright 2022 The Noto Project Authors (https://github.com/notofonts/latin-greek-cyrillic)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+https://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

client/Assets/Resources/fonts/NotoSansCJK-OFL.txt

@@ -0,0 +1,92 @@
+This Font Software is licensed under the SIL Open Font License,
+Version 1.1.
+
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font
+creation efforts of academic and linguistic communities, and to
+provide a free and open framework in which fonts may be shared and
+improved in partnership with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply to
+any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software
+components as distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to,
+deleting, or substituting -- in part or in whole -- any of the
+components of the Original Version, by changing formats or by porting
+the Font Software to a new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed,
+modify, redistribute, and sell modified and unmodified copies of the
+Font Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components, in
+Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the
+corresponding Copyright Holder. This restriction only applies to the
+primary font name as presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created using
+the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.