Copy the extracted .nsp file into a folder on the SD card (e.g., a folder named install ).
The [BASE] tag in your filename means this is the core game. You may need to find and install a separate "Update" NSP file to get the latest features or bug fixes.
Drag and drop your .nsp file directly into that folder; the app will handle the installation automatically. GASTATIONSIM-(USA)-NSwTcH-[BASE]-NSP-Ziperto.rar
This is often faster as it skips the step of copying files to the SD card first. Connect your Switch to your PC via a USB-C cable. Open on your Switch and select "Run MTP Responder."
How to Install NSP Files from SD card to the Nintendo Switch using Tinfoil!!! Copy the extracted
Reinsert the SD card into your Switch and boot into your CFW environment. Open an installer app like Tinfoil or DBI .
Right-click the file and select "Extract Here." This should produce a file with a .NSP extension (the actual game data). 2. Installation Methods Drag and drop your
Installing "backup" files (NSPs) while connected to Nintendo's official servers can lead to a permanent console ban from online services. It is highly recommended to use incognito mode or 90DNS to block Nintendo's servers while using CFW.