Reduced Ores
Scarce Resources: Increases survival difficulty by significantly reducing ore generation rates across your world
⛏️ Reduced Ore Generation
A lightweight datapack that makes your Minecraft world harder to gather resources — just the way it should be.
About
Tired of swimming in diamonds after just a few hours of mining? This datapack reduces the natural spawn rate of every ore by approximately 50%, making resources more precious, exploration more rewarding, and the overall game significantly more challenging and satisfying.
All ore types and all variants are covered — stone, deepslate, buried, large, small — including the Nether.
Features
- Reduces all ore spawn rates by ~50% in both the Overworld and the Nether
- Covers every variant of each ore (normal, large, buried, small, deepslate, etc.)
- Fully compatible with other datapacks (as long as they don't also modify ore generation)
- No commands required — just install and play
- Lightweight — no performance impact whatsoever
- Free to use in modpacks, servers, and any projects
Affected Ores
Overworld
- ⚫ Coal — upper, lower
- 🔸 Iron — upper, middle, small
- 🟡 Gold — normal, lower/deepslate, extra/badlands
- 💎 Diamond — normal, large, buried
- 🔵 Lapis Lazuli — normal, buried
- 🔴 Redstone — normal, lower/deepslate
- 🟠 Copper — normal, large
- 🟢 Emerald — normal
Nether
- 🟡 Nether Gold Ore
- ⬜ Nether Quartz Ore
- 🟣 Ancient Debris / Netherite — large, small
Installation
New world
- Download the .zip file and extract it
- Place the reduced_ores_datapack folder inside your world's datapacks directory: .minecraft/saves/[YourWorldName]/datapacks/
- Create or launch your world — the datapack activates automatically
Existing world
- Follow steps above
- Open your world and type /reload in chat
- Verify it is active with /datapack list — you should see [file/reduced_ores_datapack]
⚠️ Important: Only newly generated chunks will be affected. Already explored areas keep their original ore amounts. For the best experience, use this on a fresh world or explore entirely new areas.
Customization
Want to tweak the reduction? Open any JSON file inside data/minecraft/worldgen/placed_feature/ and adjust the "count" value for that ore. Lower = rarer, higher = more common.
License & Modpack Usage
This datapack is released under the MIT License — you are completely free to:
- ✅ Include it in modpacks
- ✅ Use it on public or private servers
- ✅ Modify and redistribute it
- ✅ Use it in commercial projects
- ✅ Feature it in videos or streams
- ✅ No credit required (though always appreciated!)
Compatibility
Minecraft Java 1.20.1 — ✅ Fully supported Other 1.20.x versions — ⚠️ May work with minor adjustments 1.19.x and below — ❌ Not supported
Feel free to leave a comment if you want different versions; I can adjust the ore rates upon request!
FAQ
Q: I installed the datapack but I still find lots of ores. Why? A: The datapack only affects newly generated terrain. Already explored chunks are not changed. Venture into new, unexplored areas for the full effect.
Q: Is this compatible with world generation mods like Terralith? A: It depends. If the other mod also replaces vanilla ore placed features, there may be conflicts. Test on a fresh world first.
Q: Can I combine this with other datapacks? A: Yes, as long as they don't also override the same ore placed features.
Created by Kav94
