Sulfur Caves Backport
Backports the Sulfur Caves from the Chaos Cubed (26.2) game drop. Does NOT backport the Sulfur Cubes.
Screenshots
About this Mod
SULFER CAVES BACKPORT MOD
Backports the Sulfur Caves to older versions of MC, in a kinda shitty fasion.
Currently on Snapshot 3
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.
Includes all the cool new sounds! Very satisfying.
Available Versions
How to Install Sulfur Caves Backport on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.8).
Install Mod
Open the mod browser in the dashboard and search for "Sulfur Caves Backport". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.8, 1.21.1, 1.20.1
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Sulfur Caves Backport server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.21.8). You can switch loaders with one click in the panel.
Is Sulfur Caves Backport compatible with fabric and forge and neoforge?
Sulfur Caves Backport officially supports fabric, forge, neoforge for Minecraft 1.21.8, 1.21.1, 1.20.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Sulfur Caves Backport – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Sulfur Caves Backport consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install Sulfur Caves Backport with just one click on your server.