Mountain Ores
by aelmors1986
Mountain Ores changes where ores spawn in a Fabric world, so ore generation reaches far above the vanilla height limit.
What it does
Ore generation is extended above sea level, with ore placement scaled to the detected height of the world. Vanilla spawns end at Y=320, and the mod pushes them up to Y=2032 in worlds that generate that height, typically through certain datapacks. Ore density stays consistent however tall the world is, because the Y-ranges and spawn counts are scaled dynamically.
The mod keeps ore spawning close to vanilla near the surface. Underground, around Y 63, the ores look much like the default distribution with slight adjustments. Higher up the terrain is split into zones: low mountains keep common ores such as coal, iron and copper frequent, mid mountains have fewer veins that are smaller, high peaks leave only iron and copper, becoming increasingly rare, and extreme peaks reward climbers with gold and emeralds. The mod is server-side only, so only the server needs it and players join without installing anything. It is open source under the MIT License and is published for 1.21.10 – 1.21.11.
Key features
Extended ore height
Ore generation continues past the vanilla 320 limit, reaching up to Y=2032 in suitable worlds.
Height-based zones
Low, mid, high and extreme peaks each change which ores spawn and how often they appear.
Scaled spawn counts
Y-ranges and spawn counts adapt to the detected world height, keeping density even in tall worlds.
Rewards at altitude
Gold and emeralds appear only at the highest elevations, giving climbing players a reason to go up.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Server owners who run tall worlds or height-extending datapacks, and players who want ore distribution to change with altitude. Clients do not need the mod.
How it compares
Ores Reduced is a Fabric mod for 1.21.4 that is server-side only and released under the MIT License, but it is not open source and works on one version. Mega World Height is also server-side only and MIT licensed, and it is not open source either, with files for 1.21.1 – 1.21.11. Calcite Veins: Motherlode-Style Regional Ores for Chunk Mining is a Fabric mod for 1.20.1, server-side only and open source under the MIT License, but it covers a single older version.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Mountain Ores | Fabric | 1.21.10 – 1.21.11 | Server-side only | 2026-02-13 |
| Ores Reduced | Fabric | 1.21.4 | Server-side only | 2026-06-26 |
| Mega World Height | Fabric | 1.21.1 – 1.21.11 | Server-side only | 2026-06-13 |
| Calcite Veins: Motherlode-Style Regional Ores for Chunk Mining | Fabric | 1.20.1 | Server-side only | 2026-01-20 |
Questions
Does Mountain Ores need to be installed on clients?
Which Minecraft versions does Mountain Ores support?
Does Mountain Ores work with taller worlds?
In the catalog
Mountain Ores is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
MountainOres is a Fabric mod that adds ore generation above sea level for Minecraft worlds of any height — from vanilla (320) to dramatically extended worlds reaching Y=2032 and beyond. All Y-ranges and spawn counts are dynamically scaled to the detected world height, so ore density stays consistent regardless of how…
Official listing
- Modrinth page
- modrinth.com/mod/mountain-ores
- Owner
- aelmors1986
- Published
- 2026-01-29
- Updated on Modrinth
- 2026-02-13
- Facts verified
- 2026-10-15