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How to install "Occultism"

A magic mod inspired by the world of Jonathan Stroud's Bartimaeus. With the help of occult rituals players can summon entities from the "Other Side" to perform magic.

Author

kli_kli

Downloads

59.1M

Last Updated

May 14, 2026

Mod Loaders

NeoForge Forge

Minecraft Versions

26.1.2 1.21.1 1.20.6 1.19.4 1.18.2 1.17.1
Magic Armor, Tools, and Weapons Adventure and RPG Storage

Quick Install ID

#occultism

Install Occultism in GDLauncher

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

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 Occultism supports (26.1.2, 1.21.1, 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 #occultism, find Occultism in the results, and hit Download. GDLauncher pulls dependencies automatically.
  5. Hit Play. That's it.

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 Occultism supports (26.1.2, 1.21.1, 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 #occultism, find Occultism 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 Occultism supports. As of the latest release, 26.1.2, 1.21.1, 1.20.6 are supported. Occultism supports multiple loaders (NeoForge, Forge); 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 Occultism free?

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

What Minecraft versions does Occultism support?

Occultism supports Minecraft 26.1.2, 1.21.1, 1.20.6, 1.19.4, 1.18.2, 1.17.1. GDLauncher will automatically pick a compatible version when you install it.

Does Occultism require Forge or Fabric?

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

How do I install Occultism?

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

Who made Occultism?

Occultism is made by kli_kli. The full project lives on CurseForge (https://www.curseforge.com/minecraft/mc-mods/occultism).

Project links

Need help?

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

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