The file has limited utility . These formats are raw disc dumps. While keys.txt can sometimes assist with decryption, modern Cemu versions generally rely on the keys extracted from your own console's OTP (One-Time Programmable) memory.
: At minimum, the file usually requires the Wii U Common Key to function, followed by specific title keys for each game you wish to play. File Placement
A: You need a unique 32-character key for each encrypted .wux or .wud file you intend to play.
For most users, the practical approach is to use a pre-made keys.txt file. With that clear, a simple internet search for "Cemu keys.txt" or "Wii U Common Key" will often lead to community-maintained resources. These files generally include the universal Wii U Common Key and a collection of game keys.
Decryption keys are copyrighted material. You should dump them from your own Wii U console using homebrew tools like Tik2SD (for game keys) and NandDumper (for the common key). wii u keystxt for cemu
The most common issue is using incorrect title keys. Ensure your keys match the specific region and version of your game.
For system titles and common keys, it looks like this:
Keyboard,L Trigger,Keyboard Q,0,0.000000,1.000000,0 Keyboard,R Trigger,Keyboard E,0,0.000000,1.000000,0 Keyboard,ZL Trigger,Keyboard Z,0,0.000000,1.000000,0 Keyboard,ZR Trigger,Keyboard C,0,0.000000,1.000000,0
For , the keys.txt file is essential for decrypting games in certain formats, specifically .WUD and .WUX . It acts as a database that the emulator checks to unlock and launch encrypted titles. Where to Place the keys.txt File The location depends on your operating system and setup: The file has limited utility
Once your console is homebrewed, you can use a homebrew application called . Launch Dumpling via the Wii U Homebrew Launcher.
Keyboard,Plus,Keyboard Enter,0,0.000000,1.000000,0 Keyboard,Minus,Keyboard Backspace,0,0.000000,1.000000,0 Keyboard,Home,Keyboard H,0,0.000000,1.000000,0 Keyboard,Capture,Keyboard P,0,0.000000,1.000000,0 Keyboard,Power,Keyboard O,0,0.000000,1.000000,0
Start Cemu and check if the emulator recognizes the keytxt file. You might need to restart Cemu if it was running during the process.
Ensure you download the correct keytxt file compatible with your version of Cemu and the games you wish to play. : At minimum, the file usually requires the
Ensure you select the option to dump the .
# This is a comment line (ignored by Cemu) d7b0040260ec6e3bc48b98c0ec3dbd5a # Wii U Common Key ExtractYourOwnGameTitleKeyHere00 # Game Name Example Use code with caution.
The modern emulation ecosystem has evolved, meaning you might not always need to manually manage a keys.txt file:
The file must be saved as a plain text format ( .txt ) using an editor like Notepad (Windows) or TextEdit (Mac). The general syntax dictates that you paste the 32-character hexadecimal key, followed by a space, a hash symbol ( # ), and an optional comment describing the game for your own organization.
: Open the file with a basic text editor (like Notepad). You paste the common key first, then add game keys on new lines below it.