Switch-ptchtxt-mods May 2026

A .pchtxt file is just a plain text file, but it has a strict structure. Open any mod like "BotW 60 FPS" and you will see something like this:

@nsobid-XXXXXXXXXX
@flag print_values
@flag offset_shift 0x100
Date: October 26, 2023
Subject: Nintendo Switch File Modification via IPS & Atmosphère
Keywords: Nintendo Switch, Homebrew, Atmosphère, ptchtxt, IPS Patches, Texture Modding.
Copy your .pchtxt file directly into the exefs folder.
Do not rename the file randomly – the filename does not matter to Atmosphere, but keeping it descriptive (e.g., 60fps.pchtxt) helps you. switch-ptchtxt-mods
While LayeredFS handles file replacement, binary patching (modifying the executable code or monolithic assets) requires specific formats.

The typical structure of a mod involves the following path hierarchy: The typical structure of a mod involves the
sdcard:/atmosphere/contents/[TitleID]/
├── exefs.ini      (Code modifications)
├── romfs/         (File replacements)
│   └── asset/texture.dat
└── patches/       (IPS patches)

If the user is utilizing a .ptchtxt file, it is likely a generated output from a tool like Switch-Toolbox or a specific localization utility, mapping hex offsets to new data values.
Creating a pchtxt mod follows a rigorous, low-level process: If the user is utilizing a
Patch text mods are modifications that alter or replace text within games. These can range from simple tweaks like changing character names or dialogue to more complex adjustments such as modifying game mechanics described in text files. Unlike traditional mods that might add new assets or significantly alter game code, patch text mods focus on textual content, making them more accessible and less intrusive.
Assuming you found the health address at offset 0x12345678 and original code was SUB W0, W0, #1 (decrement health), you might replace it with NOP (no operation).
Pchtxt file (0100F2C0115B6000.pchtxt):
@nsobid-9B3A4C5D6E7F8091
@flag offset_shift 0x100
12345678 1F2003D5