Mods
Resource Packs
Data Packs
Modpacks
Shaders
Plugins
Mods Resource Packs Data Packs Plugins Shaders Modpacks
Get Modrinth App Upgrade to Modrinth+
Sign in
ModsPluginsData PacksShadersResource PacksModpacks
Sign in
Settings
Underground Worlds

Underground Worlds

Adds underground biomes and underground dungeons, as well as some above ground structures, in a modular and configurable way.

1.80M
312
Adventure
Equipment
World Generation

Compatibility

Minecraft: Java Edition

1.21.1
1.20.1–1.20.4
1.19.4

Platforms

Fabric
Forge
NeoForge

Supported environments

Client and server

90% of ad revenue goes to creators

Support creators and Modrinth ad-free with Modrinth+

Links

Report issues View source Visit wiki

Creators

HexagonNico
HexagonNico Owner

Details

Licensed CC-BY-NC-ND-4.0
Published 2 years ago
Updated 3 weeks ago
DescriptionGalleryChangelogVersions
All versionsUnderground Worlds 21.8.2

Underground Worlds 21.8.2

Download
Report

Changelog

New Additions

  • Added the "Archives" structure
    • Can be found underground under most biomes
    • Contains adventure maps that lead to the other dungeons of the mod
    • Contains a new music disc
    • Illusioners can be found here
  • Added explorer maps
    • Can be found in the Archives, in the jungle treehouse, and in the chillager outpost
    • They lead to the major dungeons
  • Added a new music disc
    • Found in the Archives

Dependencies

dependency-iconForge Config API Portrequired
dependency-iconCurios APIoptional
dependency-iconFriends&Foes (Fabric/Quilt)optional
dependency-iconAccessoriesoptional
dependency-iconVariants&Venturesoptional

Files

undergroundworlds-fabric-21.8.2.jar(3.71 MiB) Primary
Download

Metadata

Release channel

Release

Version number

21.8.2

Loaders

Fabric

Game versions

1.21.8

Downloads

354

Publication date

November 22, 2025 at 4:17 PM

Publisher

HexagonNico

HexagonNico

Owner

Version ID

Modrinth is open source.

main@4b75cb8

© Rinth, Inc.

Company

TermsPrivacyRulesCareers

Resources

SupportBlogDocsStatus

Interact

Discord X (Twitter) Mastodon Crowdin
Get Modrinth App Settings
NOT AN OFFICIAL MINECRAFT SERVICE. NOT APPROVED BY OR ASSOCIATED WITH MOJANG OR MICROSOFT.