Once you have the .nsp file, you can install it using one of several homebrew tools on a Switch running custom firmware (CFW) like Atmosphere. : Open DBI on your Switch.

: If installing from an SD card, ensure it is formatted to exFAT if the file is over 4GB, or use a USB installation method to avoid FAT32 limitations.

Navigate to , select your file, and choose Install . Tinfoil : Open Tinfoil on your Switch.

: Since your filename contains [BASE] , it only includes the core game. You may need separate .nsp files for updates or DLC to access all features.