_top_ — Cemu Emulator Keys.txt
To successfully decrypt a game, Cemu typically looks for two distinct types of keys within the text file: 1. The Wii U Common Key
If you continue to have trouble, convert your .wud / .wux files to the cleaner, more efficient .wua format, which usually bypasses the need for manual key entry. Conclusion
The keys.txt file is a simple plain-text document that Cemu reads upon launching a game. It contains the necessary cryptographic keys in a specific, machine-readable format. When you open a game file, Cemu cross-references the game's unique ID with the entries in your keys.txt to find the correct title key. If found, it decrypts the game on-the-fly into your system RAM, allowing it to be executed.
Note: The # symbol tells Cemu to ignore everything after it on that line, allowing you to label your keys so you know which game they belong to. Step-by-Step: Setting Up keys.txt Legally
Note: The # symbol indicates a comment. Cemu ignores everything after the # , allowing you to label keys for your own organization. Step 3: Save and Test Save the changes to the file ( Ctrl + S ) and close Notepad. Launch . cemu emulator keys.txt
A universal key used by the Wii U console to decrypt system software and standard game packages.
To comply with copyright laws and emulation ethics, you should dump the keys directly from your own physical Wii U console. Prerequisites: A homebrewed Wii U console. An SD card formatted to FAT32. The homebrew application installed on your Wii U. Step 1: Dump Keys via Dumpling Insert your SD card into your homebrewed Wii U. Launch the Homebrew Launcher and open Dumpling .
—to "unlock" these files. Without the correct keys added to this text file, Cemu will likely throw an error stating it cannot decrypt the game. How to set it up Locate the file
What are your game files currently in (.wud, .wux, or folders)? Are you experiencing any performance or graphic issues ? To successfully decrypt a game, Cemu typically looks
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Frequently Asked Questions - Cemu Emulator
You are legally expected to dump the keys from your own personal, physical Wii U console. Simply downloading a keys.txt file from the internet is a legal gray area because it involves distributing copyrighted code, even if the keys are small data fragments. Emulation of hardware is legal; bypassing software protections with keys you didn't create may not be.
Without this file, Cemu cannot "unlock" your game files, particularly if they are in or .wux formats. Why You Need It: Decrypting Wii U Games
Right-click an empty space, hover over , and select Text Document . It contains the necessary cryptographic keys in a
These tools will safely dump your system's Common Key and the Title Keys of your installed games directly to an SD card.
Note: The # symbol tells Cemu to ignore everything after it on that line, allowing you to add labels so you know which key belongs to which game. How to Create and Set Up keys.txt
When using the Wii U homebrew tool to back up your physical discs, choose to dump them in the Loadiine (raw folder) format or convert them directly to .wua archives. Because these formats are decrypted during the dumping process, Cemu will play them instantly without ever asking you for a keys.txt file again. Share public link
Since Cemu 1.22+, the emulator has a built-in key manager. You can also access it via:
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