Ultima Online Korean Patch Public Release — Download ClassicUO Korean Client
Admin · 2026-09-20 · edited 2026-09-20 · 214 views
Machine-translated · View original (Korean)
This is the Korean patch release of Ultima Online. Based on the open‑source ClassicUO client, we have translated item, mob, terrain names and system messages into Korean. Anyone can download and use it, and you can also change the server address to connect.
■ Download
https://yeoulgame.com/static/uo/yeoul-uo-ko-gonggae.zip
YeoulUltima_KoreanPatch_Public.zip · approx. 8.9MB · 91 files · 1,979 lines of translation table
■ What is this?
Ultima Online is a classic MMORPG released in 1997. It still runs today, but everything is in English, which makes it difficult for many people who prefer Korean.
This package is based on the open‑source client ClassicUO and translates the in‑game text to Korean. Unzip and run it, and Ultima will show in Korean.
What appears in Korean — item names and descriptions, tooltips, system messages, mob names, terrain and building names, skill windows, logs, channels, and buttons and notices like Confirm and Cancel.
■ Supplies
The original Ultima Online Classic data must be on your PC. Basic game assets such as graphics, maps, and sounds are large and are not included in this bundle. Download the legitimate client from the official EA (Broadsword) website at uo.com. Your account is only needed when downloading the assets, not for playing.
■ How to use
1. Unzip the archive.
2. Run 버튼설치.bat (click Yes if a UAC prompt appears).
3. Run the “한글로 실행.bat” in the ClassicUO-ko folder.
■ Connection server — you can also use a different one
The default is set to our server (Yeoul Ultima), so just run it and it will connect immediately.
If you want to use it on another server, open ClassicUO-ko\settings.json in Notepad and change only the two lines "ip" and "port" to that server’s address. Nothing else needs to be touched. It wasn’t made to block you, so feel free to modify it.
■ About this public version
This is the translation table actually used on our server as of the time of posting. Nothing has been omitted on purpose.
We are continuously updating the server-side translation table. Over time, the server side will get ahead. The latest version is always on the bottom of the connection guide.
https://yeoulgame.com/connect/uo2
Public releases are not re-uploaded every time they are fixed. This release is a trial; if no major issues arise after trying it, we will consider releasing future versions publicly.
If you find any mistranslations or garbled characters, let us know on the questions board and we’ll fix them. That’s also the purpose of this open release.
https://yeoulgame.com/board/qna
■ Not yet available
- Does not apply to Enhanced Client. Only for Classic Client. Those using Enhanced Client have a separate EC-only launcher uploaded. https://yeoulgame.com/board/files/3
- Still being refined, some English remains.
■ Copyright
ClassicUO, the base, is BSD 2-Clause open source. The original is https://github.com/ClassicUO/ClassicUO The license is included in the ClassicUO_라이선스.txt file within the package.
The translation table, Korean button graphics, and UI polish were created by the Yeoul Ultima operations team. Feel free to use them personally, or pass them on to friends. When sharing, just disclose the source (Yeoul Ultima yeoulgame.com) and do not claim them as your own or sell them.
A large portion of item names and system messages are taken from Ultima Online's official Korean character set (Cliloc.kor). Those parts are not created by us and are not included in this package – they are already in the original game data you have.
The game's original data is copyrighted by EA, so we do not distribute it here.
■ File information
Size 9,317,551 bytes · 91 files · 1,979 translation lines · Base client 7.0.117.0
■ Download
https://yeoulgame.com/static/uo/yeoul-uo-ko-gonggae.zip
YeoulUltima_KoreanPatch_Public.zip · approx. 8.9MB · 91 files · 1,979 lines of translation table
■ What is this?
Ultima Online is a classic MMORPG released in 1997. It still runs today, but everything is in English, which makes it difficult for many people who prefer Korean.
This package is based on the open‑source client ClassicUO and translates the in‑game text to Korean. Unzip and run it, and Ultima will show in Korean.
What appears in Korean — item names and descriptions, tooltips, system messages, mob names, terrain and building names, skill windows, logs, channels, and buttons and notices like Confirm and Cancel.
■ Supplies
The original Ultima Online Classic data must be on your PC. Basic game assets such as graphics, maps, and sounds are large and are not included in this bundle. Download the legitimate client from the official EA (Broadsword) website at uo.com. Your account is only needed when downloading the assets, not for playing.
■ How to use
1. Unzip the archive.
2. Run 버튼설치.bat (click Yes if a UAC prompt appears).
3. Run the “한글로 실행.bat” in the ClassicUO-ko folder.
■ Connection server — you can also use a different one
The default is set to our server (Yeoul Ultima), so just run it and it will connect immediately.
If you want to use it on another server, open ClassicUO-ko\settings.json in Notepad and change only the two lines "ip" and "port" to that server’s address. Nothing else needs to be touched. It wasn’t made to block you, so feel free to modify it.
■ About this public version
This is the translation table actually used on our server as of the time of posting. Nothing has been omitted on purpose.
We are continuously updating the server-side translation table. Over time, the server side will get ahead. The latest version is always on the bottom of the connection guide.
https://yeoulgame.com/connect/uo2
Public releases are not re-uploaded every time they are fixed. This release is a trial; if no major issues arise after trying it, we will consider releasing future versions publicly.
If you find any mistranslations or garbled characters, let us know on the questions board and we’ll fix them. That’s also the purpose of this open release.
https://yeoulgame.com/board/qna
■ Not yet available
- Does not apply to Enhanced Client. Only for Classic Client. Those using Enhanced Client have a separate EC-only launcher uploaded. https://yeoulgame.com/board/files/3
- Still being refined, some English remains.
■ Copyright
ClassicUO, the base, is BSD 2-Clause open source. The original is https://github.com/ClassicUO/ClassicUO The license is included in the ClassicUO_라이선스.txt file within the package.
The translation table, Korean button graphics, and UI polish were created by the Yeoul Ultima operations team. Feel free to use them personally, or pass them on to friends. When sharing, just disclose the source (Yeoul Ultima yeoulgame.com) and do not claim them as your own or sell them.
A large portion of item names and system messages are taken from Ultima Online's official Korean character set (Cliloc.kor). Those parts are not created by us and are not included in this package – they are already in the original game data you have.
The game's original data is copyrighted by EA, so we do not distribute it here.
■ File information
Size 9,317,551 bytes · 91 files · 1,979 translation lines · Base client 7.0.117.0