SwSh OWRNG Generator GUI

Introduction

The SwSh OWRNG Generator GUI is a windows program written in C# designed to help with RNG manipulation in Pokémon Sword and Pokémon Shield for the Nintendo Switch. Both unmodified / "retail" / "stock firmware" and custom firmware methods are supported.

Currently supported RNGs:

Overworld Encounter RNG (including Marks, Shiniess, Brilliant Aura, and IVs)
Cram-o-matic Ball RNG
Loto-ID Prize RNG

Initial Setup

You will need:

SwSh OWRNG Generator GUI - either the latest stable release or the commit build
The x64 .NET 7.0 Runtime for Desktop Apps
Hybrid sys-usb-botbase by Koi-3088 (commit build + custom firmware users only)
ldn-mitm by spacemeowx2 (custom firmware users only)

Need help choosing between stable or commit build? Commit builds typically have more features but are largely untested and may contain bugs or run slower than stable releases. Unless you specifically need one of these features or otherwise know what you're doing, it's generally recommended to use the latest stable release.

To get started, run the installer for the .NET 7.0 Runtime (this only has to be done once) and restart your computer. Once installed, unzip the generator .zip archive to a folder of your choosing and simply double-click the .exe file to run it.

Custom firmware users will also want to copy the atmosphere folder from the latest release zip or sys-usb-botbase.7z and both the switch and atmosphere folders from ldn_mitm_v*.*.*.zip onto the root of their SD card in order to be to connect their Switch to the program and utilize all of the CFW features.

Usage

Highly detailed usage guides for both stock and custom firmware can be found at https://billo-guides.github.io/, thanks to Billo-PS / b.illo on discord.

Credits and Thanks

This program would not have been possible without a lot of hard work from the following people:

If you think your name should be on this list and isn't, shoot me a message on discord!