ModsFinder

Theurgy

by klikli-dev

Theurgy adds a classical alchemy system to Minecraft, built on the elements Sulfur, Salt and Mercury instead of the four classic elements.

ForgeNeoForgeClient and serverMIT LicenseOpen source1.18.2 – 26.3

What it does

The mod follows the Spagyrics process group from classical alchemy. Players work through the steps of a guide book, The Hermetica, which is crafted from sand, to handle matter and build magical artifacts. The author describes the balance as sitting between the heavy automation of Equivalent Exchange and the more involved route of Thaumcraft.

Theurgy requires Geckolib and Modonomicon, which must be installed alongside it on Forge or NeoForge. Jade, Just Enough Items and Magic Particles Lib are optional and add their own features when present. Only the server and every player who joins it need the mod, since it runs on both sides. Files are published for Forge and NeoForge across 16 release versions under the MIT License. The source code is public, with an issue tracker and wiki.

Key features

  1. Hermetica guide book

    The Hermetica is crafted from sand and records the alchemy steps a player follows, from the first process onward.

  2. Sulfur, Salt and Mercury

    Matter is handled through these three elements and the processes that move between them, instead of the four classic elements.

  3. Matter transmutation

    Players replicate and transmute matter as part of the alchemy process laid out in the book.

  4. Magical artifacts

    Alchemy outputs include magical artifacts, crafted through the same steps as other alchemical work.

  5. Configurable balance

    Configuration and recipe files let server owners adjust the balance of the alchemy system.

Compatibility

Latest build for each game version and loader.

26.x5 of 5 versions with builds
26.3Not available26.3-neoforge-1.120.0
26.2Not available26.2-neoforge-1.118.1
26.1.2Not available26.1.2-neoforge-1.116.0
26.1.1Not available26.1.1-neoforge-1.81.1
26.1Not available26.1-neoforge-1.80.0
1.21.x3 of 3 versions with builds
1.21.3Not available1.21.3-neoforge-1.70.0
1.21.1Not available1.21.1-neoforge-1.78.0
1.21Not available1.21.1-neoforge-1.55.1
1.20.x4 of 4 versions with builds
1.20.6Not available1.20.6-neoforge-1.19.6
1.20.4Not available1.20.4-neoforge-1.19.4
1.20.11.20.1-1.30.01.20.1-1.30.0
1.201.20.1-1.7.11.20.1-1.7.1
1.19.x3 of 3 versions with builds
1.18.x1 of 1 version with builds
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 2

GeckolibA 3D animation library for entities, blocks, items, armor, and more!
Required
ModonomiconModonomicon is an in-game documentation mod inspired by Thaumcraft's Thaumonomicon and Patchouli, and aims to provide the best of both, with some unique flavors.
Required

Optional 2

Just Enough Items (JEI)View Items and Recipes
Optional
Jade 🔍Shows information about what you are looking at. (Hwyla/Waila fork for Minecraft 1.16+)
Optional

Required by 2 mods

Use cases

Who it’s for: Players who want a slower, step-by-step alchemy progression rather than a fixed set of crafting recipes, and server owners who want a configurable magic system with a guide book.

Questions

Does Theurgy need Geckolib and Modonomicon?

Yes. Geckolib and Modonomicon are required dependencies and must be installed next to Theurgy on Forge or NeoForge.

Does Theurgy have to be installed on the server?

Yes. Both the server and every player need the mod, because it runs on client and server.

Which game versions does Theurgy support?

Files cover 16 release versions, with the latest Forge file for 1.20.1 and the latest NeoForge file for 26.3.

Can Theurgy be configured for a server?

Yes. Configuration, recipes and balancing are exposed through config files that server owners can edit.

In the catalog

Theurgy is one of 7,216 Magic mods on ModsFinder, and one of 3,927 Magic mods for Forge. 8,071 mods support Minecraft 26.3.

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What the author says

Theurgy is an open-source magic mod built around classical alchemy to replicate and transmute matter, and create magical artifacts. Theurgy aims to introduce a new take on Alchemy in Minecraft. Deviating from the well-trodden path of the "4 Elements" - Air, Water, Fire, Earth - it is inspired by classical Alchemy and…
klikli-dev, on the Modrinth page

Official listing

Owner
klikli-dev
Published
2023-06-18
Updated on Modrinth
2026-10-11
Facts verified
2026-10-15

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