Underground Biomes
by kreezxil
Underground Biomes changes the stone layers found below the surface, with 24 stone types, gravel, sand and cobblestone variants for world generation.
What it does
The mod replaces the plain stone that fills underground layers with 24 different stone types, and adds 24 gravel and 24 sand variants that match them. Cobblestone comes in 16 types, and the set includes moss cobblestones and monster eggs. Ores from Ores Minecraft Mods are integrated so that they blend with the surrounding stone rather than standing out from it.
The mod is a Forge world generation addon that works on client and server, so the server and every player need it. Files exist for 1.12.2 and 1.14.4, and the latest Forge build, 1.14.4-1.0.53, is marked alpha. It was first published on 2022-05-25 and last updated on 2022-09-19. The license is custom and the code is not open source, though the source code and issue tracker are public.
Mentions of Biomes O' Plenty appear in the author notes for overgrown stone variants, and the author plans to port the UndergroundBiomesConstructs mod from 1.12.2. Neither is confirmed by a released file in the catalog.
Key features
24 stone types
Underground layers gain 24 distinct stone variants in place of the plain stone found by default.
Matching gravel and sand
Gravel and sand come in 24 kinds each, so the surface materials under each stone type keep the same look.
Cobblestone and moss
Sixteen cobblestone types are added, including moss cobblestones and overgrown stone variants.
Ore compatibility
Ores from Ores Minecraft Mods are integrated so they match the stone around them in generated caves.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Underground exploration
Players travelling deep underground see a wider range of stone textures in caves and mineshafts.
Building with natural stone
Builders can collect the stone variants to match underground terrain in their own constructions.
Who it’s for: Players who want more varied underground terrain on Forge 1.12.2 or 1.14.4, and server owners who want the same generation on their world, since both sides need the mod.
How it compares
Ore Core is a Forge mod for 1.10 – 1.12.2, client and server, under All rights reserved and not open source. Mosslize is server-side only, for 1.12.2 – 1.20.1, under All rights reserved and not open source. Seamless Ores works on Fabric, Forge, NeoForge and Quilt for 1.20 – 26.3 and uses a custom license, while Underground Biomes covers only Forge 1.12.2 and 1.14.4.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Underground Biomes | Forge | 1.12.2 – 1.14.4 | Client and server | 2022-09-19 |
| Ore Core | Forge | 1.10 – 1.12.2 | Client and server | 2022-11-20 |
| Mosslize | Forge | 1.12.2 – 1.20.1 | Server-side only | 2025-07-17 |
| Seamless Ores | Fabric, Forge, NeoForge and Quilt | 1.20 – 26.3 | Client and server | 2026-10-09 |
Questions
Does Underground Biomes need to be installed on the server?
Which game versions have files for Underground Biomes?
Are the ores from Ores Minecraft Mods supported?
In the catalog
Underground Biomes is one of 8,515 World generation mods on ModsFinder, and one of 5,058 World generation mods for Forge. 1,621 mods support Minecraft 1.14.4.
More from kreezxil
Similar mods
What the author says
This is a port of the UndergroundBiomesConstructs mod to 1.12.2 Ores from Minecraft and Mods are (or can be) integrated to match the surrounding stone.
Official listing
- Modrinth page
- modrinth.com/mod/underground-biomes
- Owner
- kreezxil
- Published
- 2022-05-25
- Updated on Modrinth
- 2022-09-19
- Facts verified
- 2026-10-15