Your . If you are using v18.0.0 keys, you must also install v18.0.0 firmware within Ryujinx by going to Tools > Install Firmware . Troubleshooting

Legally, you cannot run Ryujinx without owning a Switch and dumping your own BIOS/keys. Emulators themselves are legal, but bypassing encryption without owning the original hardware is a legal gray area that often violates DMCA anti-circumvention provisions.

: Using keys that match your firmware version reduces startup crashes and data loading errors.

The latest standard for Ryujinx as of early 2026 is (and sub-versions like 18.0.1). These files are mandatory for Ryujinx to decrypt and list your Switch games. Where to Put the Keys

with the latest games, you must install both the files that match the current version of the Nintendo Switch system. As of April 2026, the latest available firmware is Essential Files for v18.0.0 and Above

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