Sakummo3-(usa)-nswtch-[base]-nsp-ziperto.rar Today

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:

This appears to be a filename for a , likely a digital dump, specifically in the NSP format (Nintendo Submission Package) intended for use with custom firmware or emulators. SAKUMMO3-(USA)-NSwTcH-[BASE]-NSP-Ziperto.rar

The common name for a popular Nintendo Switch ROM/scene release sharing site. If this is indeed Sakuna , it is