Nintendo Wipes 400+ Switch Emulator Repos in One Day

Nintendo filed seven DMCA notices in a single day, removing 400+ Switch emulator repositories from GitHub, including forks of defunct.

Earlier this week, Nintendo filed seven separate DMCA anti-circumvention notices at GitHub, all on the same day, targeting more than 400 Switch emulator repositories in a single coordinated campaign. The combined reach was substantial, with GitHub processing entire repository networks rather than individual repos. According to Nintendo Wire, 401 repositories were taken down in the sweep. Nintendo Life reports that the takedown notices accuse the projects of being designed to circumvent Nintendo's technological protection measures, stating that the emulators "illegally circumvent Nintendo's TPMs in order to run illegal copies of Nintendo Switch games."

What makes this sweep remarkable is that Nintendo targeted projects that were already supposed to be gone. Skyline, an independent Android-based Switch emulator, halted development voluntarily in 2023 due to potential legal risks, yet its open-source code survived and was forked for years. Yuzu was demolished by Nintendo in 2024, but forks remained in active development. The most targeted project was Suyu, a Yuzu successor whose entire network of 311 repositories was processed for removal. Nintendo Wire notes that Nintendo's crusade against emulators will be an endless battle, at least until the Switch no longer remains commercially viable.

TorrentFreak and Nintendo Life both published a detailed breakdown of the seven notices. The Suyu network accounted for 311 repos, processed as a full network because it exceeded 100 repositories. Skyline's network covered 29 repos. A yuzu fork by NicolasArvani had 14 repos, while the yuzu Android port by liushuyu had 8. An Early Access build labeled yuzu-EA4176 had 21 forks listed. MonoNX, a C#-based emulator, had 17 forks listed. A final yuzu fork, IpwnedU/yuzu-master, was targeted as parent only. Most of these repositories now display DMCA takedown notices, though some return 404 errors, suggesting developers voluntarily removed them after being notified.

Nintendo's legal argument across all seven notices is that Switch emulators illegally circumvent proprietary cryptographic keys, known as prod.keys, which protect games from unauthorized access and copying. According to TorrentFreak, each notice cites two court decisions as precedents: the 2024 consent judgment against Tropic Haze, the company behind Yuzu, which ended in a $2.4 million settlement, and a default judgment against streamer Jesse Keighin, aka "EveryGameGuru," who was ordered to pay $17,500. TorrentFreak notes that neither case was challenged on the merits, as one was a settlement and the other a default judgment after the defendant reportedly stopped responding and destroyed evidence.

For Nintendo, getting emulator repositories removed from GitHub is the straightforward part. Keeping the code offline is a far bigger challenge. TorrentFreak observes that forks may reappear faster than notices can remove them, and every emulator on this week's list was already supposed to be gone before being forked, mirrored, or revived. Nintendo Wire reports that Nintendo also previously demolished over 8,500 Yuzu repositories in a massive DMCA takedown, and reportedly purchased the Ryujinx emulator website in 2024. Despite these escalating enforcement efforts, open-source code inherently resists permanent deletion, ensuring that each takedown wave merely resets the clock until the next wave of forks emerges.