An NSP file is a file format used by the Nintendo Switch to distribute and install games. NSP stands for "Nintendo Submission Package". It's essentially a container file that includes all the necessary data for a game, including the game itself, updates, and DLC (downloadable content).

The extracted base game requires approximately 3 GB of free storage space.

: When downloading files from the internet, especially in archive formats like ".rar", it's crucial to ensure you're downloading from a trusted source to avoid malware or other security risks.