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How to install "QuantuMiz: Competitive Edition"

Your friendly competitive PvP modpack, aiming to be open-source alternative of PvP clients!

Author

RoonMoonlight

Downloads

9.6K

Last Updated

May 7, 2026

License

MIT

Mod Loaders

Fabric

Minecraft Versions

26.1.2 1.21.11 1.20.6 1.19.4
combat lightweight optimization

Quick Install ID

#quantumiz-ce

Install QuantuMiz: Competitive Edition in GDLauncher

QuantuMiz: Competitive Edition runs on Fabric. Pick whichever your existing instance uses, or create a new one. GDLauncher installs the correct loader automatically.

Install on Fabric

  1. Open GDLauncher and create a new instance (the + button on the Library page).
  2. Pick the Fabric loader and a Minecraft version that QuantuMiz: Competitive Edition supports (26.1.2, 1.21.11, 1.20.6 are common choices).
  3. Open the new instance, go to the Addons tab, and click Add Addons.
  4. Paste the Quick Install ID #quantumiz-ce, find QuantuMiz: Competitive Edition in the results, and hit Download. GDLauncher pulls dependencies automatically.
  5. Hit Play. That's it.

Before you install

Make sure your Minecraft version matches what QuantuMiz: Competitive Edition supports. As of the latest release, 26.1.2, 1.21.11, 1.20.6 are supported. QuantuMiz: Competitive Edition only runs on Fabric; mods built for other loaders won't work. GDLauncher checks compatibility for you and won't install something incompatible with the instance you've chosen.

Frequently Asked Questions

Is QuantuMiz: Competitive Edition free?

Yes. QuantuMiz: Competitive Edition is free to download and install through GDLauncher. GDLauncher itself is also free and ad-free.

What Minecraft versions does QuantuMiz: Competitive Edition support?

QuantuMiz: Competitive Edition supports Minecraft 26.1.2, 1.21.11, 1.20.6, 1.19.4. GDLauncher will automatically pick a compatible version when you install it.

Does QuantuMiz: Competitive Edition require Forge or Fabric?

QuantuMiz: Competitive Edition requires Fabric. GDLauncher will install the correct loader automatically when you create an instance.

How do I install QuantuMiz: Competitive Edition?

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

Who made QuantuMiz: Competitive Edition?

QuantuMiz: Competitive Edition is made by RoonMoonlight. The full project lives on Modrinth (https://modrinth.com/modpack/quantumiz-ce).

Need help?

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

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