Geomancy
by oxytocina
Geomancy is a Fabric magic mod for Minecraft 1.20.1 that adds lead poisoning, ruin exploration and gem socketing in jewelry.
What it does
Geomancy centers on dwarven magic: spellcasting with a technological, otherworldly flavor, costs that can drive a player toward madness, and lead poisoning as a hazard. Large ancient ruins lie buried beneath mountains and other terrain, and exploring them uncovers the story the mod tells.
Smithing lets players craft jewelry and socket gems into it. The mod also adds several new ores, including lead, titanium, mithril and molybdenum, plus one ore that the author text describes only as a strange outlier.
Geomancy requires Huge Structure Blocks, Modonomicon, TerraBlender and Trinkets. Installation covers the server and each player's game. Files are published for Fabric 1.20.1 only, and the source code and issue tracker are public under the GNU Lesser General Public License v3.0 only, which makes the mod open source.
Key features
Dwarven spellcasting
Spells follow a technological, otherworldly approach, and casting them carries costs that the player must weigh.
Lead poisoning
Exposure to lead applies a poisoning effect, which the mod uses as a tension point alongside madness.
Ancient ruins
Large ruins are buried under mountains and terrain, and exploring them reveals the story of the world.
Gem socketing
Smithing creates jewelry that accepts gems in sockets, combining metalwork with magic items.
New ores
Lead, titanium, mithril and molybdenum ores are added, along with one ore that does not fit the others.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 4
Use cases
Story exploration
Players who explore the world can locate buried ruins and follow the narrative they hold.
Magic progression
Spellcasting, its costs and the new ores give survival players a magic-focused path through the game.
Who it’s for: Players who want magic with a dwarven theme and a story to uncover, on Fabric 1.20.1 with the required libraries installed on both the server and the client.
How it compares
Gems is a Fabric mod for 1.20.1 under the MIT License, not open source, with the same client and server environment, and it covers gems alone. Toxicate is open source under the MIT License for 1.21 – 1.21.5 and runs on client and server, so it targets newer game versions. Lead The Villagers is server-side only, not open source under the MIT License, and covers 1.20 – 1.20.3.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Geomancy | Fabric | 1.20.1 | Client and server | 2025-12-25 |
| Gems | Fabric | 1.20.1 | Client and server | 2024-05-10 |
| Toxicate | Fabric | 1.21 – 1.21.5 | Client and server | 2025-05-24 |
| Lead The Villagers | Fabric | 1.20 – 1.20.3 | Server-side only | 2023-12-07 |
Questions
Does Geomancy need Trinkets?
Does Geomancy have to be installed on the server?
Is Geomancy available for versions other than 1.20.1?
In the catalog
Geomancy is one of 7,216 Magic mods on ModsFinder, and one of 3,630 Magic mods for Fabric. 34,764 mods support Minecraft 1.20.1.
Similar mods
What the author says
It adds several new ores, such as lead, titanium, mithril and molybdenum, and one strange outlier thats hard to describe. Don't worry, it'll tell you more itself....Maybe it's better if you don't listen, though.
Official listing
- Modrinth page
- modrinth.com/mod/geomancy
- Owner
- oxytocina
- Published
- 2025-07-31
- Updated on Modrinth
- 2025-12-25
- Facts verified
- 2026-10-15