, you are invited to a remote mansion only to find yourself stalked by the iconic, shears-wielding Scissorman
The .nsp extension indicates this is a digital distribution file format for the Nintendo Switch. Unlike XCI (cartridge dumps), NSPs are designed for installation to the console’s internal storage or SD card. This file is intended for use with custom firmware (CFW) environments like Atmosphere or Ryujinx/Yuzu emulators.