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How to install "The Reimagining Undertale Project"

A Reimagining of Undertale in Minecraft

Author

HaroldTheFool

Downloads

17.8K

Last Updated

Oct 21, 2025

Minecraft Versions

1.21.8 1.20.4
Creation

Quick Install ID

#the-reimagining-undertale-project

Install The Reimagining Undertale Project in GDLauncher

  1. Open GDLauncher and pick (or create) the instance you want to add The Reimagining Undertale Project to.
  2. Open the Addons tab and click Add Addons.
  3. Paste the Quick Install ID #the-reimagining-undertale-project, select The Reimagining Undertale Project, and click Download. GDLauncher handles dependencies and version matching automatically.
  4. Hit Play and you're done.

Before you install

Make sure your Minecraft version matches what The Reimagining Undertale Project supports. As of the latest release, 1.21.8, 1.20.4 are supported. GDLauncher checks compatibility for you and won't install something incompatible with the instance you've chosen.

Frequently Asked Questions

Is The Reimagining Undertale Project free?

Yes. The Reimagining Undertale Project is free to download and install through GDLauncher. GDLauncher itself is also free and ad-free.

What Minecraft versions does The Reimagining Undertale Project support?

The Reimagining Undertale Project supports Minecraft 1.21.8, 1.20.4. GDLauncher will automatically pick a compatible version when you install it.

Does The Reimagining Undertale Project require Forge or Fabric?

Check the CurseForge page for The Reimagining Undertale Project to see which mod loader it supports. GDLauncher will install the correct loader automatically once you pick the addon.

How do I install The Reimagining Undertale Project?

Open GDLauncher, go to your instance's Addons tab, click Add Addons, and paste the Quick Install ID #the-reimagining-undertale-project. GDLauncher handles dependencies and the right Minecraft version automatically.

Who made The Reimagining Undertale Project?

The Reimagining Undertale Project is made by HaroldTheFool. The full project lives on CurseForge (https://www.curseforge.com/minecraft/worlds/the-reimagining-undertale-project).

Need help?

Read our troubleshooting guide, check the guides section, or join the GDLauncher Discord community.

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