Open a command prompt in that directory and run the extraction command (typically java -jar jwudtool.jar -in game.wux -extract ). The tool will output the code , content , and meta folders.
Because .wux files are encrypted copies of retail discs, Cemu requires a specific alphanumeric key to unlock the file.
By exploring the world of BOTW WUX files, you'll unlock a new level of understanding and appreciation for the game. Join the community, share your discoveries, and help shape the future of BOTW modding.
Because WUX files are encrypted copies of retail discs, Cemu requires a specific cryptographic key to decrypt and run the game. Open Cemu and select . Locate a file named keys.txt .
: You must find the common key and the specific game key for Breath of the Wild and add them to your keys.txt file located in the Cemu root folder. 2. File Preparation botw wux file
A BOTW WUX file is a type of archive file used by the game to store various assets, such as textures, models, and audio files. WUX is a compressed file format developed by Nintendo, specifically designed for their games. In the case of BOTW, WUX files contain a wide range of data that helps bring the game's vast open world to life.
Cemu will automatically install these files into its internal mlc01 virtual storage folder.
Paste the exact and the unique Breath of the Wild disc key into this file. (Note: Users must dump these keys from their own Wii U console). Save and close keys.txt . 2. Load the Game In Cemu, go to Options > General Settings .
Because the extracted folder format offers better performance and easier update management, many users choose to convert their .wux file into the Loadiine format. Open a command prompt in that directory and
A WUD is a raw, 1:1 sector-by-sector copy of a Wii U game disc. For Breath of the Wild , a full WUD file is approximately . This is because Wii U discs use a proprietary optical disc format that holds roughly 25GB of data.
If you need to install updates or mods (like Relic/DLC) to a specific, editable format, you can use specialized tools to convert the WUX/WUD into a folder structure containing .app and .h3 files. This is usually done with tools like NUSPacker or similar, which allows you to place the game in Cemu's games folder. Troubleshooting WUX Files in Cemu
Select the .wux file and click . If your keys are correct, the game will boot. How to Convert WUX to RPX (Folder Format)
While WUX files save space compared to raw WUD images, the emulation community generally considers them outdated. Two superior alternatives exist: 1. Loadiine (Unpacked Folder Format) By exploring the world of BOTW WUX files,
While Cemu can load .wux files directly,
The Cemu emulator natively reads .wux files without requiring manual extraction. The Disadvantages
Without this key, Cemu will display a "Missing key" error and refuse to boot the game. 2. Load the Game Open Cemu. Click on in the top menu bar. Select Load .
Note: You must dump these keys legally from your own physical Wii U console using homebrew software. Step 2: Configure the Keys.txt File Open your Cemu folder.