Right-click and select . Considerations
Updates and DLC are baked into the archive, so they load automatically without needing to be installed separately in Cemu’s internal storage.
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If you have the hardware to run Cemu, the .WUA format is arguably the most efficient way to store your library right now. It cleans up your ROM folder significantly. wua roms wii u
Ensure you are running a recent version of Cemu (Cemu 2.0 or newer is highly recommended).
: Your emulator or storage directory stays perfectly organized. One game equals one file.
: Cemu reads WUA files natively without needing to uncompress them, saving both CPU overhead and disk space. WUA vs. WUX vs. Loadiine: Comparison WUA Format Loadiine (RPX/Folder) WUD / WUX Format File Structure Single File Thousands of files/folders Single File Includes Updates/DLC Yes (Bundled together) No (Stored separately) No (Base game only) Compression Excellent (Very Small) Moderate to None (Large) Transfer Speed Extremely Slow Best Used For Cemu Emulation & Storage Legacy Homebrew Archival Archives How to Create WUA ROMs Right-click and select
WUA ROMs is a platform that aggregates ROMs (Read-Only Memory images) of various video games, including those from the Wii U library. For those unfamiliar, ROMs are digital copies of games that can be played on devices other than their original hardware through emulation. WUA ROMs Wii U section specifically caters to Wii U games, offering a vast collection that users can access and enjoy.
Choose your output destination. Cemu will automatically find the corresponding updates and DLC installed in its directory and bake them into the new WUA file. Playing WUA ROMs on Cemu
: Merges Game + Update + DLC into one file, so you don't have to install updates into Cemu’s virtual file system separately. This link or copies made by others cannot be deleted
The has dramatically simplified Wii U emulation. It solves the major pain points of managing updates and DLC, offering a clutter-free, space-saving, and user-friendly solution. For anyone serious about playing Wii U games on PC or a handheld like the Steam Deck, converting your collection to WUA is a no-brainer. With its lossless compression and standalone tool support, it ensures your games are preserved for future generations.
The shift toward WUA files in the emulation community is driven by three primary factors: convenience, compression, and compatibility.
WUD files are raw, uncompressed dumps of Wii U optical discs. They are massive, always taking up roughly 23 GB of space regardless of how small the actual game is. WUX files compress this data, but they still cannot house updates or DLC.