Choose to install to the (recommended) or console memory. Via PC (NSP Merging) : Use the Switch Army Knife (SAK) app. Place your Nintendo keys in the bin folder.
adventure back on track, you may have noticed things look a little different on the Nintendo eShop lately. With the release of Chapters 3 and 4 in mid-2025, the way the game updates—especially for those using NSP files or looking for the "free" version—has shifted significantly.
Uninstall the Deltarune update, leaving only the base game on your system. Launch the base version of Deltarune Chapter 1 & 2.
Verify that the update NSP you downloaded matches that specific ID exactly.
While still in the installer interface, locate your Deltarune update file (NSP or compressed NSZ format) on your PC. deltarune chapter 1 2 switch nsp update work
Before diving into technical details, it's essential to understand the game's release timeline. Deltarune is the brainchild of Toby Fox, the creator of the critically acclaimed Undertale . Unlike its predecessor, Deltarune is an episodic role-playing game set in a parallel universe.
The only lingering issue? Many pre-existing EdiZon codes for infinite HP or TP break after this update due to shifted memory addresses. If you rely on cheats, stick with the older v1.0.2 NSP.
You must finish Chapter 1 before Chapter 2 becomes accessible. Reality: The official game allows you to skip to Chapter 2 at any time from the main menu. The unlock update respects this.
The phrase "update work" in this context refers to the patching process executed by the console or modifying tools. Choose to install to the (recommended) or console memory
If you haven't played since 2021, your game might be out of date. To ensure you have fully installed: Go to the Home Screen: Highlight the Deltarune icon. Press the '+' Button: Select 'Software Update'.
On the Switch, Deltarune runs at a smooth 60 FPS in both docked and handheld modes. The NSP version behaves identically to the eShop original—no added lag, crashes, or graphical issues. Chapter 2’s more complex battles (e.g., the Giga Queen fight) run without frame drops. The only rare issue reported involves outdated signature patches on custom firmware; updating your sigpatches resolves this.
When Deltarune Chapter 1 first released, it was a standalone title. Later, Chapter 2 was developed and, on Nintendo Switch, it was released not as a separate icon, but as a mandatory update to the existing Chapter 1 software. The update serves two main purposes:
Chapters 1 and 2 remain part of the base package, while Chapters 3 and 4 were added as new content. Chapter 5: Currently in development and scheduled for a free update in late 2026 for owners of the paid version. 🛠️ How to "Update" via NSP adventure back on track, you may have noticed
If the update fails, the game acts strangely, or you cannot start Chapter 2, try these steps:
In the context of preservation or homebrew communities, "NSP update work" often refers to converting the standalone Chapter 1 into the bundled version.
Deltarune is a role-playing game developed by Toby Fox, the creator of the critically acclaimed Undertale. The game was initially released as a browser-based experience in 2018, with a later release on PC and other platforms. In 2021, a Nintendo Switch release of Deltarune Chapter 1 & 2 NSP (Non-Standard Package) update became available, allowing Switch users to play the game on the go. This paper aims to provide an in-depth review of the Deltarune Chapter 1 & 2 Switch NSP update, exploring its features, gameplay, and reception.
For the scope of this article, "Chapter 1&2" generally refers to the free demo version that includes the first two chapters, which received numerous updates and fixes over time.