When you download a 3DS ROM in .3ds or .cia format, it is often encrypted. Without the corresponding keys, Citra will display an error message stating that it cannot load the ROM.
Ensure your file is named exactly aes_keys.txt . Sometimes Windows hides file extensions, resulting in a file named aes_keys.txt.txt , which Citra won't recognize. Conclusion citra aes keystxt download top
If you prefer not to deal with keys, you can look for "Decrypted" 3DS ROMs. These have already had the encryption removed and can be played on Citra without any extra key files. When you download a 3DS ROM in
Inside the main Citra folder, look for a folder named sysdata . If it doesn't exist, create it manually. resulting in a file named aes_keys.txt.txt