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Virtual Witch Arrangement Mod for Minecraft 1.20.1, 1.21.1

Adjust the Eldritch Research Screen of Iron's Spellbooks for improved readability when many Eldritch spells are present.

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Updated
Updated 18.10.2026

About the Virtual Witch Arrangement mod

As various Iron’s Spellbooks add-ons introduce more Eldritch spells, the Eldritch Research Screen of ISS can become very crowded, making it hard to see and select icons. If this has been bothering you, this mod is made exactly for that!

1.20.1

Virtual Witch Arrangement — screenshot 3
  • This mod enlarges the Eldritch Research Screen and changes how spell icons are arranged (implemented by redirecting to a new Screen via a mixin).
  • You can switch to different layouts by editing the virtualwitcharrangement-client.toml configuration file.

1.21.1

Virtual Witch Arrangement — screenshot 4
  • This mod allows you to freely drag the spell nodes on the Eldritch Research Screen. Simply hold ALT and drag with the left mouse button.
  • Your custom layout is saved to config/vwa_eldritch_research_nodes.json on the client, which means it won’t reset - and modpack authors can even provide preset node layouts for players.
1.20.1
1.21.1
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How to install Virtual Witch Arrangement

With Millida Launcher

  1. Install Millida Launcher

    The launcher is free: download it at millida.net/launcher and sign in with any nickname.

  2. Click “Install” on this page

    The launcher opens and installs the mod for Minecraft 1.20.1–1.21.1 on Forge or NeoForge automatically.

  3. Launch the game

    A profile with it appears in the launcher: click “Play”.

Manually

  1. Install Forge or NeoForge

    The loader must match the game version of the mod file, for example Minecraft 1.21.1. After installing it, a separate profile appears in your launcher.

  2. Download the file for your version

    In the version list above, pick the file ISS_VirtualWitchArrangement-NeoForge-1.21.1-1.0.0.jar (22 KB) for your game version and loader.

  3. Put it in the mods folder

    The folder is inside .minecraft (Windows: %appdata%\.minecraft\mods). If it does not exist, create it.

  4. Launch the loader profile

    Open “Mods” in the main menu: Virtual Witch Arrangement should be in the list.

Minecraft 1.21.1 runs on Java 21: with a different Java version the game may close right after launch.

Versions

With dependencies

MinecraftLoaderFileDateActions
1.21.1NeoForgeISS_VirtualWitchArrangement-NeoForge-1.21.1-1.0.0.jar22.4 KB 2
1.20.1ForgeISS_VirtualWitchArrangement-Forge-1.20.1-1.0.0.jar25.6 KB

FAQ

Which Minecraft versions does Virtual Witch Arrangement work on?

There are files for 1.21.1, 1.20.1. The newest is 1.21.1.

Is Virtual Witch Arrangement for Forge or Fabric?

There are files for Forge: 1.20.1 and for NeoForge: 1.21.1. There are no files for Fabric: a mod for another loader will not start.

Does Virtual Witch Arrangement need other mods?

The author lists no required dependencies: the Forge or NeoForge loader is enough.

Which Java does Virtual Witch Arrangement need?

Minecraft 1.21.1 runs on Java 21. If the game closes right after launch, the usual cause is the wrong Java version in the profile settings.

Where can I download Virtual Witch Arrangement safely?

On this page: the file ISS_VirtualWitchArrangement-NeoForge-1.21.1-1.0.0.jar (22 KB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: f920454d3e9bbd014ed575ba117dd66baedc7423.

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