SwSh Item RNG Guide (CFW)

This guide will cover the process of RNG abusing NPCs and item machines in Sword/Shield using the SwSh Overworld RNG Tool created by LegoFigure11. This program is intended to be used on Windows machines, no support for other operating systems will be provided here.

Introduction:

Item RNG manipulation offers an efficient method for farming rare items and in-game currency. By accurately predicting potential outcomes, players can maximize the effectiveness of their farming efforts, ensuring optimal use of time when farming for rare in-game resources by removing the element of luck.

Type Of RNG Use Cases, Location & Requirements Difficulty
Lottery

Farm Master Balls, PP Max, and Rare Candies at any PokeCenter.

Requirements
  • Access to Wedgehurst PokeCenter (recommended)
 Easy
Cram-o-matic

Farm rare PokeBalls (Apricorn, Safari, Sport) in the Isle of Armor Dojo.

Requirements
  • Access to the Isle of Armor DLC
  • Access to the Cram-o-matic machine
  • Have plenty of apricorns to use on the machine
 Easy
Watt Trader

Farm rare PokeBalls (Dream, Beast) at Snowslide Slope in Crown Tundra.

Requirements
  • Access to the Crown Tundra DLC
  • Have plenty of Watts (200,000+)
  • Have spoken to the Watt Trader at least once
 Intermediate
Digging PA

Farm unlimited Watts at the Isle of Armor desert biome to exchange for valuable items.

Requirements
  • Access to the Isle of Armor DLC
  • Have plenty Armorite Ore
  • Have spoken to the Digging PA at least once
 Intermediate
Note - Check the in-game requirements for the type of RNG you wish to do. This guide also assumes that you are using a CFW Switch console running Atmosphère. If you are using an unmodified console, visit the retail guide.

Setup Requirements

The required tools/applications you need may vary depending on the type of RNG you wish to do. Read through the instructions carefully to avoid complexities and potential troubleshooting.

You Will Need:
All cases:
Installation Instructions:
  1. Download and run the NET 7.0 installer and go through the setup instructions.
  2. Extract the SWSH_OWRNG_Generator_GUI.zip into an empty folder on your computer.
  3. Move the atmosphere folder to the root of your Switch SD card.
  4. Extract the ldn_mitm.zip into an empty folder on your computer.
  5. Move the atmosphere and switch folders to the root of your Switch SD card.
  6. Plug the SD card back into the console, inject a payload, then launch SysCFW.
Digging PA specifics:
Installation Instructions:
  1. Download and run the NET 9.0 installer and go through the setup instructions.
  2. Download and run the LINQPad installer and go through the setup instructions.
  3. Download PKHeX Development Build and extract PKHeX.Core.dll to a known location.
  4. Open the Digging PA Calculator in your browser, this will be needed later.

Note - Verify that both the SwSh Overworld RNG tool and LINQPad launch correctly before proceeding. Additionally, ensure that the necessary Switch system modules have been properly installed by connecting to the RNG tool (see below).
Figure 1 - Program Connectivity

rng-tool-setup

Connectivity Instructions:
  1. Open the Homebrew menu (typically done by pressing Album), then press the Y button to display the local IP address of your console.

  2. Launch the game, then attempt to connect to the Overworld RNG tool by inputting the IP address into the Switch IP:, then click the Connect button.

  3. If done correctly, you should see your current seed has been automatically entered into the fields on the top-left of the RNG tool (see the above image).

  4. If you do not see your seeds or you are getting connection errors, revisit the installation instructions above, disable any cheats/mods, then try again.

The Basics

This section covers the techniques used to advance the RNG state and the most common techniques used to hit a desired target. At this stage you should now be familiar with the benefits of each type of item RNG manipulation, and have all of the relevant programs and applications you need functioning properly with no issues.

Advancing The RNG State:

There are various techniques used to advance the RNG state, some actions cause the RNG state to advance slowly, some actions advance in a predictable manner, and some cause the RNG state to advance rapidly in an unpredictable manner, read the information provided on the page below to learn more.

Continue to advancing the RNG state

Menu close prediction is a technique used to advance the RNG state in a predictable manner in order to near guarantee success in hitting a specific target frame. This method is used extensively throughout the guide, regardless of the type of RNG you plan to do. It is highly recommended to understand how to utilize menu close prediction before continuing.

Continue to menu close prediction