When users report that with Ryujinx, they are typically confirming:

Having the keys is not enough to play games; you usually need the firmware files installed for the emulator to understand how to run the game.

Once you have obtained your prod.keys file for version 18.0.0, installing them into Ryujinx is a quick and straightforward process. Follow these steps: Step 1: Open the Ryujinx System Folder Launch the emulator on your PC. In the top menu bar, click on File .