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Better Cave Worlds Updated

by wujinjun

Better Cave Worlds Updated is a datapack that generates cave dimensions reached through a portal, and its author keeps it current with new Minecraft releases.

FabricForgeNeoForgeQuiltServer required, client optionalMIT LicenseOpen source1.20 – 26.2

What it does

The datapack creates Cave Worlds, a dimension with biomes, foliage, aquifers and large ore veins. Players enter it through a portal. Structures in it generate on or near the roof, and most still reach bedrock because the datapack cannot change the dimension's height. Everything else can be done there as normal.

The project continues the original datapack by Klinbee, forked on GitHub because the original developer no longer maintains it. The fork updates the datapack for newer Minecraft versions, fixes bugs and world generation problems caused by recent changes, and accepts issues and pull requests. Version 1.2.4 targets 26.2 and is published for Fabric, Forge, NeoForge and Quilt. The server must run the mod, while players may leave it out, and the code is released under the MIT License as open source.

Key features

  1. Cave dimension

    Cave Worlds generate as a separate dimension with biomes, foliage, aquifers and large ore veins.

  2. Portal travel

    Players reach the cave dimension through a portal, and the datapack places the cave areas beneath the overworld.

  3. Structures on the roof

    Structures generate on or near the cave roof, and most of them extend down to bedrock.

  4. Maintained fork

    A GitHub fork tracks newer releases, fixes breaking changes and accepts contributions from players.

Compatibility

Latest build for each game version and loader.

26.x4 of 4 versions with builds
26.21.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
26.1.21.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
26.1.11.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
26.11.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
1.21.x12 of 12 versions with builds
1.21.111.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
1.21.101.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
1.21.91.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
1.21.81.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
1.21.71.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
1.21.61.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
1.21.51.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
1.21.41.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
1.21.31.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
1.21.21.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
1.21.11.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
1.211.2.4+mod1.2.4+mod1.2.4+mod1.2.4+mod
1.20.x7 of 7 versions with builds
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Server exploration

Server owners add a second layer of terrain for players to explore below the overworld.

Who it’s for: Server owners and players who want underground exploration in a world generated with a datapack. The datapack works on single-player worlds when the world is loaded with it.

How it compares

Full comparison

Klinbee's Vast Vistas: Otherview is MIT licensed and open source, with files for 1.20 – 1.21.11, and the server must run it while players may skip it. Retro Caves is also MIT licensed and open source, with files for 1.20 – 26.1, and only the server needs it. World of Lush Caves is not open source and is licensed under the GNU General Public License v3.0 only, with files for 1.19 – 1.21.4.

ModLoadersGame versionsEnvironmentUpdated
Better Cave Worlds UpdatedFabric, Forge, NeoForge and Quilt1.20 – 26.2Server required, client optional2026-08-17
Klinbee's Vast Vistas: OtherviewFabric, Forge, NeoForge and Quilt1.20 – 1.21.11Server required, client optional2026-05-09
Retro CavesFabric, Forge, NeoForge and Quilt1.20 – 26.1Server required, client optional2026-03-25
World of Lush CavesFabric, Forge, NeoForge and Quilt1.19 – 1.21.4Server required, client optional2025-02-13

Questions

Does Better Cave Worlds Updated need a loader?

The datapack is published for Fabric, Forge, NeoForge and Quilt, and it also comes as a data pack for server platforms.

Do players need the datapack installed?

Players may leave it out, since the server is the side that must run the mod.

Which Minecraft versions does the latest file support?

The latest file, 1.2.4 for 26.2, is dated 2026-08-17. Files exist for versions 1.20 – 26.2.

In the catalog

Better Cave Worlds Updated is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 13,894 mods support Minecraft 26.2.

Similar mods

What the author says

This is a fork of the datapack Better Cave Worlds (Github repo), it exist because the original developer doesn't actively maintain and it fails on newer Minecraft versions where multiple breaking changes are introduced. This fork exists to keep the project alive by: - updating it for new Minecraft releases - fixing…
wujinjun, on the Modrinth page

Official listing

Owner
wujinjun
Published
2026-07-22
Updated on Modrinth
2026-08-17
Facts verified
2026-10-15

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