Emulators are legal, but Nintendo’s prod keys are part of its copy protection, and laws in the US and EU prohibit distributing tools and data that circumvent copy protection. This is why emulator projects, Lichii included, tell users to dump keys and firmware from consoles they own.
Are emulators legal?
Yes. Emulating a console’s hardware is legal in the US; the 2000 Sony v. Connectix ruling treated reverse engineering for compatibility as fair use. The legal risk sits with keys, firmware and games, not with the emulator code.
What does the law say about keys?
- United States: section 1201 of the DMCA prohibits circumventing access controls and trafficking in circumvention technology.
- European Union: article 6 of the Copyright Directive (2001/29/EC) requires member states to protect technological measures.
- Exceptions for personal backups vary by country and rarely cover downloading keys someone else dumped.
What happened to Yuzu?
Nintendo sued Yuzu’s developers in February 2024, arguing that the emulator was built to circumvent its encryption. The developers settled in March 2024, paid 2.4 million US dollars and shut the project down. Forks such as Eden, and later Lichii, continued from the code.
Can you be banned for using emulator keys?
Keys used only in an emulator never reach Nintendo’s servers. A console used to dump keys with homebrew can be banned from online services if it goes online with modified software.
The personal-dump route
This page is part of prod keys and firmware for Lichii, where every prod keys and firmware version for Lichii is listed with its download link. Related guides are collected under safe prod keys downloads. The files themselves are on the prod keys download page.