Decrypted 3ds Roms Internet Archive -

Most 3DS games are dumped from physical cartridges in an state. While a real 3DS console uses built-in "title keys" to read this data, emulators often struggle with encrypted files.

: Emulators such as Citra (and its successors like Azahar) typically require decrypted .3ds or .cci files to run games out-of-the-box. Decrypted 3ds Roms Internet Archive

The Internet Archive hosts several community-curated collections of 3DS software. Most 3DS games are dumped from physical cartridges