Do not use converted XCI files or outdated dumps. You need:
This file contains the core game engine, Chapter 1 fully playable, and the introductory section of Chapter 2. Without any additional files, you cannot play beyond the Chapter 2 paywall.
to merge the base NSP and the update into a single "Super NSP" file to avoid separate installation issues. Save Data Conflicts (Chapter 1 to 2)
Disclaimer: This paper is for educational and technical analysis purposes only. The manipulation or distribution of NSP files may violate intellectual property laws and the Terms of Service of Nintendo.
Toby Fox (the creator of Deltarune and Undertale ) has always supported fan content, ROM hacks, and even watching full playthroughs. However, he’s also clear: deltarune chapter 1 2 switch nsp update work
: These chapters were released in June 2025 as part of a paid version for both Nintendo Switch and the newer Nintendo Switch 2 hardware. Key Fixes and Adjustments Recent updates (Version 1.02 and 1.03) included:
: Always ensure your Custom Firmware (CFW) has the latest sigpatches installed, or the new NSP will fail to launch with an "unable to start software" error. Installation Guide for Modded Systems
Toby Fox’s has captivated fans since its surprise release, offering a deep, character-driven experience that expands on the legacy of Undertale . For players on the Nintendo Switch, managing the game—specifically ensuring that Chapters 1 and 2 are fully updated and functional—is key to a smooth journey through the Dark World.
The tool will output a single, updated NSP file that you can then install as one package. Key Update Features (v1.02/v1.03) Do not use converted XCI files or outdated dumps
Deltarune Chapters 1 & 2 (Originally launched as a free demo package)
The Nintendo Switch is a popular gaming console that offers a vast library of games, including indie titles like Deltarune. The Switch NSP (Nintendo eShop) update for Deltarune Chapter 1 and 2 allows players to experience the game on-the-go, with the convenience of seamless updates and compatibility with the Switch's hybrid design.
Many users report crashes on launch, "software closed due to an error," or the dreaded "you must have the software to continue" message. This guide will walk you through exactly how to make the on your Switch (Atmosphere/Tinfoil) without issues.
The game runs at a stable framerate on the original Switch, though some minor lag was reported during heavy effects in Chapter 2 on certain hardware versions. Mostly Fixed to merge the base NSP and the update
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: Updated save data import messages to help players select the correct files when upgrading from the older "Survey Program" or Chapter 1 & 2 demo versions. Chapter 5 Status
Complete Guide to Making the Deltarune Chapter 1 & 2 Nintendo Switch NSP Update Work