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A: You need the Citra AES Key.txt Top file to decrypt and play 3DS games on Citra. Without it, you won't be able to play most 3DS games. citra aes keystxt top
Nintendo 3DS game cartridges and digital downloads are encrypted using to prevent unauthorized copying and execution. The Citra emulator , an open-source Nintendo 3DS emulator, requires these AES keys to decrypt and run legitimate game files – but only those you have legally dumped from your own physical cartridges or purchased digital copies. Click OK to save your changes