When a game requiring a seed is launched on an 3DS:
"3ds seeddb.bin" a database file used by Nintendo 3DS homebrew applications to decrypt and launch certain games that utilize eShop seeds 3ds seeddbbin full
allows for offline installation of games that would otherwise need to download seeds from Nintendo's servers. How to Obtain or Generate It When a game requiring a seed is launched
When a game is launched on the 3DS console, the SeedDB BIN file is read and processed by the console's operating system. The data contained within the file is used to: 3ds seeddbbin full