Nintendo Wipes Out 400+ Switch Emulator Repositories on GitHub in a Single Day

Nintendo filed seven takedown notices at GitHub in a single day, removing more than 400 repositories tied to Nintendo Switch emulators in one coordinated sweep. The notices, filed under the Digital Millennium Copyright Act (DMCA) — the US law that lets copyright holders demand removal of infringing material — targeted a total of 401 repositories, according to TorrentFreak.

The biggest single target was Suyu, a fork (a community-maintained spin-off) of the now-defunct Yuzu emulator. Because the Suyu repository network named in one DMCA notice exceeded 100 repositories, GitHub processed that notice against the entire network — 311 repositories in one stroke. The remaining six notices each targeted between a lone repository and clusters of a few dozen, including the Android emulator Skyline and lingering Yuzu forks (GameSpot).

Nintendo's legal argument rests on what it calls Technological Protection Measures, or TPMs — the encryption that prevents unauthorised copying of Switch games. In its DMCA notice, Nintendo stated that the targeted emulators use unauthorised copies of proprietary cryptographic keys, known as "prod.keys," to decrypt unauthorised copies of Switch games at or immediately before they run. Most of the affected repositories went offline after the notices; some display a link to the takedown request, while others return a 404 error, suggesting the developers pulled their own code after being notified (TorrentFreak).

This sweep is the latest move in a campaign that has been running for over two years. Nintendo sued Tropic Haze, the creator of the Yuzu emulator, in February 2024, after The Legend of Zelda: Tears of the Kingdom was pirated more than one million times before its official launch. The lawsuit settled the same month for a US$2.4 million consent judgment, and Yuzu shut down in March 2024. By October 2024, the Ryujinx emulator project had also shut down under Nintendo pressure (GameSpot; TorrentFreak).

Nintendo cited both of those court outcomes as legal precedent in its new DMCA notices — the Tropic Haze consent judgment and a US$17,500 default judgment won in a Colorado court in October 2024 against streamer Jesse Keighin, known as EveryGameGuru. The sweep also reached projects that had already gone quiet: the Skyline emulator had shut itself down years before this takedown campaign, yet its repositories were still caught in the net (TorrentFreak).

GitHub notified at least five emulator projects — Skyline, Sudachi, Sumi, Suyu, and Yuza — that they had been hit with DMCA notices during the sweep, according to GamesIndustry.biz.

Taken together with a separate removal of over 8,500 repositories in May 2024, Nintendo's total GitHub takedowns now approach 9,000. For anyone who follows emulator development, the pattern is familiar: projects surface, attract a community, and then face a legal notice that takes the code offline. What is different here is the scale of a single day's action — 401 repositories gone in one sweep, filed on one day, under one coordinated campaign.