__top__ | Cemu Keys.txt
– Cryptographic keys are highly precise. A single missing character or an accidental space within the 32-character string will invalidate the entire key. Ensure your keys are exactly 32 hex characters long.
Sometimes a base game will run, but updates or DLC will not.
Place the Dumpling files into the wiiu/apps/ directory on your SD card. Insert the SD card into your Wii U and power it on. Launch the and open Dumpling .
The Wii U Common Key is a universal system key used by Nintendo to encrypt all retail games. It is a single, static 32-character hexadecimal string. Because it is identical for every Wii U console worldwide, Cemu requires this key to initiate the decryption process for standard retail disk dumps. 2. Title Keys Cemu Keys.txt
The Ultimate Guide to Cemu Keys.txt: What, Why, and How to Use Them (2026 Update)
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Wii U games dumped directly from a disc ( .wud or .wux format) or downloaded as digital titles ( .wua or encrypted files) are encrypted to prevent piracy. – Cryptographic keys are highly precise
Run the app to dump the keys for your currently inserted Disc or installed Digital games. The keys will be located in SD:\tik2sd\keys.txt .
Place your keys.txt file in the folder defined in the app settings, usually Android/data/info.cemu.cemu/files 1.2.2 . Open Cemu and refresh the game list.
The keys file is typically placed in %USERPROFILE%\emudeck\EmulationStation-DE\Emulators\cemu 1.2.4 . 5. Troubleshooting "Keys.txt" Issues Sometimes a base game will run, but updates or DLC will not
DLC and updates have their own title IDs and require their own keys in keys.txt . You need to add them separately.
Then add only the key for the one game you want to test. For instance, if you own New Super Mario Bros. U (USA title ID 0005000010145F00 ), you would enter:
Even experienced users run into snags when dealing with encryption keys. If your games still aren't loading, check for these common pitfalls:
This is the most common question among new users. If Cemu needs this file to work, why don't the developers just include it in the download?
