Download Switch Prod Keys & Firmware v23.0.0

It is a plain-text list — roughly two hundred lines in name = value form — holding master key generations (master_key_00 upward), titlekeks, key area keys for application, ocean and system content, and the header key an emulator reads before anything else. Nothing in the file is executable; it is just key material an emulator looks up by name.

The keys are symmetric secrets that only exist inside real console hardware, and they are Nintendo's protected property. No emulator can legally bundle them, and none can calculate them from the game files alone — which is why Ryujinx and every other project asks you to point it at your own prod.keys.

Match the file to the newest game you want to play, not to your emulator version. A prod.keys dump can open anything encrypted up to the newest generation it contains; anything newer will fail to decrypt. If you are unsure, take the newest dump — it also covers every older title.

Suyu, Yuzu, Eden and Citron use a keys folder (%APPDATA%/suyu/keys/ and equivalents), while Ryujinx uses a system folder (%APPDATA%/Ryujinx/system/) — the odd one out that catches most people. Android builds use their own app folders under Internal Storage. Install paths for every platform and emulator are listed under each download table tab.

Usually not. Modern emulators derive each title key from the master keys in prod.keys on the fly, and most dumps include the title key area already. A separate title.keys file only helps with a small set of digital releases; if a specific eShop title refuses to start, adding it is a cheap thing to try.

Almost always the game, not the emulator. A patch or a newly installed title can require a newer key generation or a newer firmware build than your setup provides. Refresh prod.keys to the current version and install matching firmware via the emulator's Tools menu before touching graphics settings.

For the games that existed when you dumped it, yes — older titles do not stop working. What fails over time is anything released after your dump: each firmware bump adds a key generation, and last year's first-party release will eventually assume it. Replace the file after major firmware updates and you will never hit that wall.

It is one of the more forgiving console modding tasks: put the console into payload mode, run Lockpick_RCM, and it writes prod.keys and title.keys to your SD card in a couple of minutes. It works on a console you own, produces a file that matches your exact firmware, and avoids relying on dumps of unknown origin.