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How to install "MC Calamity"

A datapack that attempts to recreate the Terraria: Calamity Mod

Author

NotGleam

Downloads

34.1K

Last Updated

Jul 23, 2025

License

CC-BY-4.0

Mod Loaders

Fabric Forge NeoForge Quilt

Minecraft Versions

1.21.4 1.20.4
adventure datapack equipment food game-mechanics magic mobs utility worldgen

Quick Install ID

#mc-calamity

Install MC Calamity in GDLauncher

  1. Open GDLauncher and pick (or create) the instance you want to add MC Calamity to.
  2. Open the Addons tab and click Add Addons.
  3. Paste the Quick Install ID #mc-calamity, select MC Calamity, 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 MC Calamity supports. As of the latest release, 1.21.4, 1.20.4 are supported. MC Calamity supports multiple loaders (Fabric, Forge, NeoForge, Quilt); 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 MC Calamity free?

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

What Minecraft versions does MC Calamity support?

MC Calamity supports Minecraft 1.21.4, 1.20.4. GDLauncher will automatically pick a compatible version when you install it.

Does MC Calamity require Forge or Fabric?

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

How do I install MC Calamity?

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

Who made MC Calamity?

MC Calamity is made by NotGleam. The full project lives on Modrinth (https://modrinth.com/datapack/mc-calamity).

Need help?

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

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