To update Salt and Sanctuary (or any game) using an NSP file on a portable Nintendo Switch, you must use a homebrew installer such as Goldleaf, DBI, or Tinfoil. Note that this process requires a modified console running Custom Firmware (CFW) like Atmosphère. Quick Installation Guide (Using Goldleaf)
If you prefer a physical cartridge over a digital NSP, several limited editions exist: salt and sanctuary switch rom nsp update portable
Salt and Sanctuary is an excellent 2D platformer game that's well worth playing on the Nintendo Switch. While obtaining a ROM NSP file can be a convenient way to play the game portably, make sure to do so through legitimate means. If you're looking to update the game using an NSP file, make sure to follow the necessary steps carefully. To update Salt and Sanctuary (or any game)
Format Info: The game is available as a digital download via the Nintendo eShop or as a physical release, such as the Drowned Tome Edition, which includes a physical cartridge and a manual. NSP is a Nintendo Switch package format (often
Installation: Updates are typically distributed as separate NSP files. On a modded Switch, these must be installed after the base game using tools like DBI, Tinfoil, or Goldleaf.
File Size: The game is remarkably lightweight, with a file size of approximately 999 MB to 1 GB, making it easy to store on the Switch’s internal memory or a standard SD card. Official Updates & Downloads