Nintendo recently launched another large-scale legal crackdown on Switch emulators, submitting 7 DMCA (Digital Millennium Copyright Act) takedown notices to GitHub, resulting in the removal of a cumulative total of 401 code repositories. This involved Suyu, Skyline, MonoNX, and multiple Yuzu fork projects.
In this operation, Suyu was Nintendo's primary target. GitHub processed takedown requests targeting the entire repository network of the Suyu project, with a single notice covering 311 repositories.
According to GitHub's policy, when a network contains more than 100 repositories and the copyright holder states that representative samples show that most or all branches contain the same alleged infringing content, the platform can disable the entire repository network. It is this policy that allowed a single complaint from Nintendo against Suyu to affect 311 repositories.
The remaining takedown repositories are distributed as follows:
Skyline:29 repositories
MonoNX Fork:17 repositories
A Yuzu Network:14 repositories
Yuzu Android Version:8 repositories
Other Yuzu Forks:Several
It should be specifically noted that "401" does not refer to 401 independent Switch emulators, but rather the total count obtained by including multiple branches and associated repositories under the same projects.
In these takedown notices, Nintendo claims that these emulators circumvent the technological protection measures used by Switch games, specifically pointing to proprietary encryption keys used to decrypt game files. Nintendo argues that the distribution of the emulators themselves violates the DMCA's anti-circumvention provisions, rather than merely "encouraging piracy."
This action is the latest chapter in Nintendo's ongoing "cleanup" of Switch emulators:
March 2024:Nintendo reaches a $2.4 million settlement with Yuzu developer Tropic Haze, marking the end of development for both Yuzu and Citra.
May 2024:GitHub processed Nintendo's complaint against a Yuzu fork network, affecting 8,535 repositories.
February 2026:Nintendo launches a new round of massive takedowns, covering Yuzu and several other Switch emulators.
Under sustained legal pressure, some emulator projects have begun to adjust their strategies. Taking Suyu as an example, the project has disabled downloads and is shifting to a new operational model—requiring users to provide their own ROM files in an attempt to circumvent direct legal risks. Furthermore, this wave of legal action has indirectly affected comprehensive emulation platforms like RetroDECK, whose developers removed built-in Switch emulation support due to concerns over legal liability.
While emulators themselves have had their legality established in US law through precedents such as "Sony v. Bleem!", the focus of Nintendo's current action is not the emulator itself, but the method used to bypass encryption mechanisms. The key issue is that modern console emulation generally requires encryption keys to run commercial games, which falls squarely within the scope of the DMCA's anti-circumvention provisions.
This means that as long as Switch game files still require decryption to run, any emulator offering a "plug-and-play" experience may face legal prosecution from Nintendo.