[32-character Title Key] # [Game Name / Optional Description]
The Wii U uses proprietary encryption to protect its software. When you dump a game from your console to your PC, that data remains locked. The keys.txt file is a simple text document located in your main Cemu folder that stores the alphanumeric codes needed to decrypt these games.
💡 If you use the WUA file format (Wii U Archive), you can often bypass the need for a manual keys.txt entry for every individual game, as the format is designed to be more "plug-and-play" with modern versions of Cemu.
The Cemu emulator is very particular about how data is entered. For the emulator to recognize your keys, they must follow a specific syntax. Each line in your text file should look like this:
If you have added your keys but the games still won't launch, check the following:
This is a universal key used by the Wii U hardware to decrypt system-level content.
If you tell me you're trying to set up or what version of Cemu you're using, I can give you more specific steps for your setup.