Subterranean Expansion | Cave Update
Modby Desblivion
Overhaul of underground caves in the overworld.
Type
Mod
CurseForge Downloads
49,667
CurseForge ID
1339384
Modrinth Downloads
6,876
Modrinth ID
8eTiXwZJ
Last Updated
Sep 1, 2026
Description

About Subterranean Expansion:
Subterranean Expansion enhances the underground experience of vanilla caves by introducing new natural features and unique cave environments to bring you the cave update we all actually wanted.
Stalagmites & Stalactites:

Stalagmites and Stalactites of all vanilla stone variants, and even some custom stone variants.
In Release 1.0.0:
- Stone Stalagmite/Stalactite
- Mossy Stone Stalagmite/Stalactite
- Granite Stalagmite/Stalactite
- Diorite Stalagmite/Stalactite
- Andesite Stalagmite/Stalactite
- Deepslate Stalagmite/Stalactite
- Tuff Stalagmite/Stalactite
- Sandstone Stalagmite/Stalactite
- Deep Sandstone Stalagmite/Stalactite
- Calcite Stalagmite/Stalactite
Update 1.0.0: Desert Caves

IMPORTANT INFO:
This mod is a passion project that doesn't have a whole team behind it. We expect there to be bugs and we will try to fix them. The mod is still in active development and is planned to add more features. Other than that, enjoy our mod!
Recommended mods:
You should stock up on worldgen optimization mods, as this mod tends to slow it down a bit due to the added complexity. Here are a few:
FAQ:
Is there a config file?
Not currently, planned for the future.
Will you port to X mod loader?
No. We are going to currently use Forge for 1.20.1, although we are not opposed to do so in the future.
Where can I report bugs?
You can report in the issue tab.
Can I use this in my modpack?
Yes.
I have a suggestion, how do I suggest it?
You can suggest it in the issue tab with the suggestion tag.
Recommended Gear
AffiliateHardware and extras that pair well with this mod.
As an Amazon Associate I earn from qualifying purchases.
Screenshots
Similar Mods
Apoli (Forge)
A standalone library mod for 3rd party Origins addons
Backported Flora
Adds flowers from newer versions, seagrass and kelp to 1.12.2
Durability Viewer Updated
Armor and Tool durability HUD
Epic Fight x JujutsuCraft compatability
Adds mob and weapon compat with Epic Fight and JujutsuCraft
Video Player
Play videos in minecraft without limits...
Wither-Proof Block (Fabric/Forge)
Simple wither-proof block (Fabric/Forge)