Files of this nature (NSP) are generally used within the Nintendo Switch homebrew community for:
Making digital backups of legally owned physical cartridges. SAKUMMO3-(USA)-NSwTcH-[BASE]-NSP-Ziperto.rar
Playing legally owned games on PC emulators like Yuzu or Ryujinx . Files of this nature (NSP) are generally used
If this is indeed Sakuna , it is a highly regarded game developed by Edelweiss and published by XSEED Games. It combines two distinct styles of gameplay: SAKUMMO3-(USA)-NSwTcH-[BASE]-NSP-Ziperto.rar
The region, meaning it is the North American version of the game. NSwTcH: Indicates the platform is the Nintendo Switch.
Installing games onto a modified Nintendo Switch console running Atmosphère . ⚠️ Important Notice
The common name for a popular Nintendo Switch ROM/scene release sharing site.