UBC - Reworked and Fixed
Minecraft Java mod. Downloads from the MC Java Mods app on Android.
This is moving to now. This page will not be updated anymore, and may get deleted in the future. Release 1.3.1 has moved to that page. (This will get…
⬇ Download on CurseForge
This is moving to https://minecraft.curseforge.com/projects/underground-biomes now. This page will not be updated anymore, and may get deleted in the future. Release 1.3.1 has moved to that page.
(This will get improved soon)
This mod basically adds 24 different kind of stones, with modded ore support, and variants like button, slabs, bricks, etc...
But unfortunately this mod was abandoned 2 times by Zeno410, whose mod was taken back by kyeiti, which, since a little while, has been inactive too, keeping some major bugs and missing features out of the question.
So, I decided to continue this, as allowed by the license.
This is now compatible with way more mods, like native ore support for GrowthCraft & NuclearCraft while also supporting OTG / RTG (Cobble UB-ing) and BOP's Overgrown Stone, and way more is currently planned.
Feel free to ask for features / native mod's ores support / etc
You can use curse, github or discord to contact me.
Original mod page : https://minecraft.curseforge.com/projects/underground-biomes
- Edition: Minecraft Java
- File type: .jar
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as UndergroundBiomesConstructs-1.12-1.3.0.jar — drop this file into the mods folder
- Download size: 751 KB
- Download link checked 13 Oct 2026 — working
These come from our own check of the pack file, not from the source page.