CurseForge · Minecraft mod
UndergroundBiomesConstructs [Reworked]
This is a continuation of the "UndergroundBiomesConstructs" mod
Quick answer
Which UndergroundBiomesConstructs [Reworked] release should I use?
UndergroundBiomesConstructs [Reworked] undergroundbiomesconstructsreworked-1.21.1-1.0.2-beta.jar targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is UndergroundBiomesConstructs [Reworked] required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does UndergroundBiomesConstructs [Reworked] undergroundbiomesconstructsreworked-1.21.1-1.0.2-beta.jar need?
undergroundbiomesconstructsreworked-1.21.1-1.0.2-beta.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add UndergroundBiomesConstructs [Reworked] without breaking your instance.
Built for UndergroundBiomesConstructs [Reworked] undergroundbiomesconstructsreworked-1.21.1-1.0.2-beta.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use undergroundbiomesconstructsreworked-1.21.1-1.0.2-beta.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside undergroundbiomesconstructsreworked-1.21.1-1.0.2-beta.jar. It opens that exact file at the source.
About this project
What does UndergroundBiomesConstructs [Reworked] add?
UndergroundBiomesConstructs [Reworked]
UndergroundBiomesConstructs [Reworked] brings back the classic underground biome experience, reimagined and updated for Minecraft 1.21.1.
This mod is based on the original 1.7.10 version by Zeno410.
Original version here: UndergroundBiomesContructs
About the Project
This is a fun project and also my first biome mod. The goal is to make underground exploration more varied and interesting by adding diverse new biomes.
As it is a hobby project, bugs or issues may still be present
Compatibility
The mod should work alongside other biome mods. Tested with Biomes O' Plenty
Further testing with other mods may follow.
Version & Future Plans
Currently planned for Minecraft 1.21.1
No backports to older versions are planned
The focus is entirely on the current version.
Project description from CurseForge.
Pick your setup
UndergroundBiomesConstructs [Reworked] by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
1 loader build26.1.1
1 loader build26.1
1 loader build1.21.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
UndergroundBiomesConstructs [Reworked] versions and loaders
undergroundbiomesconstructsreworked-1.21.1-1.0.2-beta.jar
undergroundbiomesconstructsreworked-1.0.2-beta.jar
16 Sept 2026
undergroundbiomesconstructsreworked-26.2.x-1.0.0.jar
17 Jun 2026
undergroundbiomesconstructsreworked-26.1-1.0.0.jar
25 Mar 2026
undergroundbiomesconstructsreworked-1.0.1-beta.jar
18 Feb 2026
undergroundbiomesconstructsreworked-1.0.0-beta.jar
16 Feb 2026
Looking for an older file? The official CurseForge project page is in Resources.
