Nintendo has issued new DMCA takedown requests against 13 Nintendo Switch emulators on GitHub. The emulators targeted include Citron, Eden, Kenji-NX, MeloNX, Pine, Pomelo, Ryubing, Ryujinx, Skyline, Sudachi, Sumi, Suyu, and other projects that rely on Yuzu. The notices say the emulators violate the law by bypassing Nintendo’s technological protection measures.

Nintendo’s complaint states that these emulators are mainly built to run illegal copies of Nintendo Switch games. The company says this breaks the DMCA because the software is designed to get around the security meant to protect its games.

Some emulator developers have responded to the takedowns. Eden’s GitHub releases were removed, but its source code is still available on other hosting sites. Developers involved in these projects said they will keep working on them, with a focus on video game preservation and helping legitimate game owners play titles outside of the original hardware.

This is part of Nintendo’s ongoing crackdown on emulation that became more active in 2024 after the removal of Yuzu and the 3DS emulator Citra. The most recent takedown wave was first spotted by a Reddit user and later confirmed by tech news outlets.

The action is another step that could make Nintendo platform emulation more difficult. It continues the debate over game preservation and copyright enforcement.