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How to install "Citadel"

A Lightweight Library

Author

AlexModGuy

Downloads

11.8M

Last Updated

Jan 17, 2026

License

LGPL-3.0-only

Mod Loaders

Forge NeoForge

Minecraft Versions

1.21.1 1.20.1 1.19.4 1.18.2 1.17.1 1.16.5
library

Quick Install ID

#citadel

Install Citadel in GDLauncher

Citadel runs on Forge, NeoForge. Pick whichever your existing instance uses, or create a new one. GDLauncher installs the correct loader automatically.

Install on Forge

  1. Open GDLauncher and create a new instance (the + button on the Library page).
  2. Pick the Forge loader and a Minecraft version that Citadel supports (1.21.1, 1.20.1, 1.19.4 are common choices).
  3. Open the new instance, go to the Addons tab, and click Add Addons.
  4. Paste the Quick Install ID #citadel, find Citadel in the results, and hit Download. GDLauncher pulls dependencies automatically.
  5. Hit Play. That's it.

Install on NeoForge

  1. Open GDLauncher and create a new instance (the + button on the Library page).
  2. Pick the NeoForge loader and a Minecraft version that Citadel supports (1.21.1, 1.20.1, 1.19.4 are common choices).
  3. Open the new instance, go to the Addons tab, and click Add Addons.
  4. Paste the Quick Install ID #citadel, find Citadel 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 Citadel supports. As of the latest release, 1.21.1, 1.20.1, 1.19.4 are supported. Citadel supports multiple loaders (Forge, NeoForge); pick whichever matches your other mods. GDLauncher checks compatibility for you and won't install something incompatible with the instance you've chosen.

Frequently Asked Questions

Is Citadel free?

Yes. Citadel is free to download and install through GDLauncher. GDLauncher itself is also free and ad-free.

What Minecraft versions does Citadel support?

Citadel supports Minecraft 1.21.1, 1.20.1, 1.19.4, 1.18.2, 1.17.1, 1.16.5. GDLauncher will automatically pick a compatible version when you install it.

Does Citadel require Forge or Fabric?

Citadel supports Forge, NeoForge. Pick the loader that matches your other mods, or let GDLauncher set up a fresh instance for you.

How do I install Citadel?

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

Who made Citadel?

Citadel is made by AlexModGuy. The full project lives on Modrinth (https://modrinth.com/mod/citadel).

Need help?

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

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