Unplayable without patches. Do not use this version.
The phrase also includes "DLC." Here is the official DLC available for The Sinking City on Switch: the sinking city rom nsp update dlc switch free
When you search for "the sinking city rom nsp update dlc switch free" , you are specifically looking for the Necronomicon DLC. Legally, this costs $9.99. Illegally, DLC files are often locked to specific console IDs; a free DLC NSP from a random source likely won't unlock without the correct ticket file, leading to error code 2168-0002. Unplayable without patches
Disclaimer: This is for educational discussion of file structures only. Downloading copyrighted NSPs you do not own is illegal in most jurisdictions. When you search for "the sinking city rom
If you have a legitimate backup of your own cartridge and want to apply the update manually:
Let's address the elephant in the room. You want the update DLC Switch free combo. Websites claiming to offer this are abundant on the first few pages of Google. However, here is the technical truth about downloading The Sinking City illegally: