CurseForge · Minecraft mod
Madoc's Cavernous
Adds more cave biomes to the Overworld
Quick answer
Which Madoc's Cavernous release should I use?
Madoc's Cavernous Cavernous [BETA] 1.0.jar targets 1.20.4 with Forge. 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 Madoc's Cavernous 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 Madoc's Cavernous Cavernous [BETA] 1.0.jar need?
Cavernous [BETA] 1.0.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 Madoc's Cavernous without breaking your instance.
Built for Madoc's Cavernous Cavernous [BETA] 1.0.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Cavernous [BETA] 1.0.jar. It targets 1.20.4 with Forge; 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 Cavernous [BETA] 1.0.jar. It opens that exact file at the source.
About this project
What does Madoc's Cavernous add?
Very old project I never finished, thought I would upload it as an alpha
Adds 3 biomes and new resources; an underground mushroom biome (fantasy game staple frfr); a desert-y/lava-y sandstone based biome and an deep frozen biome with wind.


Project description from CurseForge.
Pick your setup
Madoc's Cavernous by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Madoc's Cavernous versions and loaders
Cavernous [BETA] 1.0.jar
8 Jan 2026
Looking for an older file? The official CurseForge project page is in Resources.