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Sulfur Caves Backport

by Keyaan

Sulfur Caves Backport brings the Sulfur Caves world generation from the Chaos Cubed 26.2 drop to older game versions, with Sulfur Cubes included.

FabricForgeNeoForgeClient and serverAll rights reserved1.20.1 – 26.1.2

What it does

The mod backports the Sulfur Caves content from the Chaos Cubed 26.2 drop, including the Sulfur Cubes and the Cinnabar and Sulfur distribution. Sulfur Caves generate in new worlds, and mob spawn rates follow the wiki outside the Sulfur Cubes, though the caves themselves are a little rarer. Its files target 1.20.1 – 26.1.2, and it runs on client and server, so the server and every player need it.

Key features

  1. Sulfur Caves generation

    Sulfur Caves generate in the world, with spawns modeled on the wiki and slightly rarer caves.

  2. Sulfur Cubes

    The Sulfur Cubes from the Chaos Cubed 26.2 drop are backported to the supported versions.

  3. Mob spawn rates

    Outside the Sulfur Cubes, mob rates match the wiki one to one, following the published values.

Compatibility

Latest build for each game version and loader.

26.1.21.3.1Not available1.3.1
1.21.81.3.1Not available1.3.1
1.21.1Not availableNot available1.3.1
1.20.1Not available1.3.1Not available
ReleaseBetaAlphaNot available

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

How it compares

Full comparison

Sulfur Backport is Fabric only, with files for 1.20.1 – 1.21.11, and is also all rights reserved. Chaos cubed drop is a Forge file for 1.20.1 under the MIT License. Drops Backport is open source under the GNU Lesser General Public License v3.0 only, for 26.1 – 26.1.2 on Fabric and NeoForge.

ModLoadersGame versionsEnvironmentUpdated
Sulfur Caves BackportFabric, Forge and NeoForge1.20.1 – 26.1.2Client and server2026-09-17
Sulfur BackportFabric1.20.1 – 1.21.11Client and server2026-03-30
Chaos cubed dropForge1.20.1Client and server2026-03-28
Drops BackportFabric and NeoForge26.1 – 26.1.2Client and server2026-10-15

Questions

Does Sulfur Caves Backport need Fabric API?

No required dependency is listed for Fabric, Forge and NeoForge.

Does the server need Sulfur Caves Backport?

Yes. Servers that run it need every player to install it too.

In the catalog

Sulfur Caves Backport is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 15,189 mods support Minecraft 26.1.2.

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What the author says

Backports the Sulfur Caves to older versions of MC, in a kinda shitty fasion. Sulfur Caves spawn similar to how they're stated to spawn on the wiki, though a bit rarer. Mob rates are 1:1 with the wiki outside of Sulfur Cubes, and Cinnabar / Sulfur distribution aint 1:1 but similar.
Keyaan, on the Modrinth page

Official listing

Owner
Keyaan
Published
2026-04-10
Updated on Modrinth
2026-09-17
Facts verified
2026-10-15

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