Geolosys
by oitsjustjose
With Geolosys installed, ore generation follows geological rules, so the ores in each world are placed by a configurable overhaul.
What it does
Geolosys replaces the default ore distribution with a system modeled on geological layers, and it works alongside other mods that add ores or change terrain. Its ore set is defined through datapacks, and the mod ships with a default set of resources that can be edited or replaced. Patchouli is an optional dependency that adds in-game documentation. Installation covers the server and each player's game. Files are published for Forge and NeoForge across 12 release versions, 1.12 – 1.21.1, and the code is released under the GNU General Public License v3.0 only, making it open source.
Key features
Geological ore placement
Ores generate in layers and deposits that follow geological patterns rather than uniform scatter.
Datapack configuration
Ore definitions, sizes and placement rules are set through datapacks, so worlds can be tuned without editing code.
Default resource set
The mod includes a predefined set of ore resources that works out of the box and can be replaced.
Mod compatibility focus
The ore generation coexists with many tech mods, and it can be extended by other data-driven ore mods.
Gallery
Compatibility
Latest build for each game version and loader.
1.21.x1 of 1 version with builds
1.20.x1 of 1 version with builds
1.19.x1 of 1 version with builds
1.18.x2 of 2 versions with builds
1.16.x2 of 2 versions with builds
1.15.x1 of 1 version with builds
1.14.x1 of 1 version with builds
1.12.x3 of 3 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Optional 1
Required by 1 mod
How it compares
No More Copper Ore is a server-side only option for Fabric, Forge, NeoForge and Quilt, open to 1.19 – 1.21.1 under the MIT License, and it is not open source. MineCollapse requires both sides and uses a custom license for 1.20.1 – 1.21.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Geolosys | Forge and NeoForge | 1.12 – 1.21.1 | Client and server | 2026-10-13 |
| No More Copper Ore | Fabric, Forge, NeoForge and Quilt | 1.19 – 1.21.1 | Server required, client optional | 2024-10-01 |
| MineCollapse | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2025-07-14 |
Questions
Which loader should Geolosys use?
In the catalog
Geolosys is one of 8,515 World generation mods on ModsFinder, and one of 5,058 World generation mods for Forge. 32,366 mods support Minecraft 1.21.1.
More from oitsjustjose
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What the author says
Old versions will continue to work exactly as they do now, but Geolosys has become a chore to maintain. Geolosys is a mod-compatibility-first Ore Generation overhaul mod that integrates *Geolo*gical *Sys*tems into Minecraft. Geolosys is highly configurable via Datapacks and comes with a pre-defined set of default…
Official listing
- Modrinth page
- modrinth.com/mod/geolosys
- Owner
- oitsjustjose
- Published
- 2022-05-23
- Updated on Modrinth
- 2026-10-13
- Facts verified
- 2026-10-15