NSP and XCI are file formats used to run Nintendo Switch games on custom firmware (CFW) or emulators, often referred to as "backups". The distinction between them lies in their origin:

Marking a shift to full 3D, this entry continues Kate’s journey directly. While it received a mixed reception upon release due to technical issues, subsequent patches on the Switch have aimed to fix bugs and improve stability.

Then, . The update brought stability to the frozen wastes. No longer would the game stutter when the Great Train roared across the tracks. The snow fell in high-definition silence, a perfect white canvas for a story about dreams and mammoths.