File - Botw Wux

To get the best experience on PC, you should enable in Cemu: How to emulate Nintendo Wii U games on Mac! (Cemu tutorial)

This comprehensive guide explains exactly what a BOTW WUX file is, how it works, how to use it with emulators like Cemu, and how to troubleshoot common issues. What is a BOTW WUX File?

If you get a "could not decrypt" error, it usually means your

A standalone WUX file represents only the base version (v0) of Breath of the Wild .

The BotW WUX file is much more than just a compressed game image. It's a practical solution for saving storage space, a key that unlocks the game for emulation on Cemu, and the foundation for a rich and vibrant modding ecosystem. By mastering the concepts in this guide, from the basic file types to the tools of the trade like JWUDTool and BCML/UKMM, you are now equipped to fully explore the world of Hyrule in ways Nintendo never imagined. As the format continues to evolve with newer standards like WUA, the legacy of the WUX file remains as the cornerstone of the Wii U emulation experience.

For Breath of the Wild players using the Cemu emulator, the .wux format offers three primary advantages:

BotW modding is all about replacing or modifying files within these structures. Tools like and its successor U-King Mod Manager (UKMM) are used to merge multiple mods into a single, conflict-free "modpack" that works with your game files. Other tools like Ice-Spear or BotW Unpacker help decompress and repack specific file formats, allowing you to edit models, textures, and gameplay parameters.

Compressed disc image. File size is smaller (approx. 10–13 GB). It functions identically to a WUD but saves space.

A: The legality of the file itself is neutral. The .wux is a file format. What matters is how you obtain it. Creating a .wux file from a Wii U game disc that you personally own is generally considered legal for backup purposes in some regions. However, downloading a .wux file of a game you do not own from the internet is copyright infringement and is illegal in most parts of the world.

While Cemu can run WUX files perfectly fine, the format has a major drawback:

An uncompressed 1:1 raw copy of the original disc, which is always roughly 23.3GB to 25GB in size.

When managing Wii U game files, you will generally encounter three main formats. Choosing the right one impacts your storage space and how easily you can mod the game. 1. WUD (Wii U Disc Image)