To understand the NSO N64 experience, one must first understand the (Nintendo Submission Package). In the context of the Nintendo Switch, an NSP is the digital file format used for downloadable titles, updates, and DLC from the eShop. Unlike the cartridge dumps (ROMs) of yesteryear, an NSP is a signed, encrypted package designed to run only on authorized Switch hardware under Nintendo’s proprietary emulator—commonly referred to as Hovercraft or Mupen64 -derived cores.

You can find the official application for the Nintendo 64 library through these direct steps:

For the average Switch owner, sticking with the official NSO N64 library is the safest and simplest path. But for the dedicated enthusiast with a modded console and a personal ROM collection, the NSPJpes Link offers an unprecedented level of integration—blending the polish of Nintendo’s emulator with the freedom of the open-source romping scene.

As of late 2025, the service includes approximately . Top Titles Notable Additions Super Mario 64 GoldenEye 007 The Legend of Zelda: Ocarina of Time Banjo-Kazooie Mario Kart 64 Pokémon Stadium 1 & 2 Star Fox 64 Paper Mario Nintendo 64™ - Nintendo Switch Online