Ores Mods

Ores Mods changes the ore generation that Minecraft applies to a world. A custom configuration system reaches much further than the vanilla datapack format, letting a modpack creator set vein sizes, shapes, heights and distribution in fine detail. Rules can be applied to a specific biome or dimension, so one configuration can differ across the world without a separate datapack for each area.

The mod also covers resource duplication, a common problem in heavily modded environments where several mods add the same material. Newly unified duplicate items can be hidden automatically in JEI and EMI, so the item lists show one entry per material. Ores Mods requires Ores Core, which handles the registration of basic resources and the placement of ores, so the companion mod can focus on the generation rules and the item view. Ores Core must be installed alongside it, and the matching version of each must be present.

The mod runs on Fabric and NeoForge for Minecraft 26.1 and is published with snapshot builds. It is needed on both the server and every client, since the generation and item rules have to match on each side. Files for 26.1 are dated 2026-03-25, and the first release was published on 2026-03-06. The code is not open source; the mod is released under the Creative Commons Attribution Non Commercial Share Alike 4.0 license. The source code, issue tracker and wiki are public.