Nintendo has issued 401 DMCA takedown notices against GitHub repositories connected to Nintendo Switch emulation, including 311 linked to the Suyu emulator. The action underscores Nintendo’s continued effort to prevent software it says enables unauthorised access to Switch games, following its previous legal action against Suyu’s predecessor, Yuzu.

Nintendo argues that the targeted emulators bypass the Switch’s technological protection measures and use unauthorised copies of proprietary encryption keys, known as prod.keys, to decrypt game files. Emulation itself is not inherently illegal, but the article notes an ongoing debate over whether owners of legitimately purchased games should be able to extract and run their copies on alternative hardware.