Nintendo wipes out 400+ Switch emulator repositories on GitHub in a single day

Nintendo

Nintendo has filed seven DMCA anti-circumvention notices at GitHub in a single day, taking down more than 400 Switch emulator repositories in one of its most sweeping enforcement actions to date. The campaign targets emulators that were supposed to already be dead, from Yuzu successors to projects that shut themselves down years ago, and it signals that Nintendo has no intention of letting dormant code quietly survive on open source platforms.

The details:

Nintendo filed all seven notices on August 17, targeting a combined network of over 400 repositories. The largest single notice targeted Suyu, a Yuzu successor that became popular after Yuzu's collapse in 2024, and GitHub processed it against the entire network of 311 repos at once.
The six remaining notices covered Skyline (29 repos), a Yuzu fork by NicolasArvani (14 repos), a Yuzu Android port (8 repos), an early access Yuzu build (21 forks), MonoNX (17 forks), and a standalone Yuzu fork. Most targeted repositories now display GitHub removal notices, with some returning 404 errors suggesting developers voluntarily deleted them after being notified.
Skyline is the most notable inclusion. The Android Switch emulator shut itself down voluntarily in 2023, but its open source code survived in forks, and Nintendo swept those up regardless.
Nintendo's legal argument in all seven notices is the same: the emulators necessarily use unauthorised copies of Nintendo's cryptographic keys to decrypt Switch game ROMs, which constitutes circumvention under the DMCA. Every notice cites the 2024 Tropic Haze/Yuzu consent judgment ($2.4 million settlement) and Nintendo's 2025 default judgment against streamer Jesse Keighin ($17,500) as precedents. Neither was tested on the merits in court.
This follows an earlier wave in February 2026 when Nintendo targeted Yuzu and more than a dozen other emulators. The pattern is consistent: code gets taken down, forks resurface on GitHub or alternative platforms, Nintendo files again.

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