Sulfur cubes

This mod adds sulfur cubes for minecraft 1.21.11

6.2K Downloads

neoforgemobs

Rent Server with this Mod

Screenshots

About this Mod

I added the Sulfur Cube to Minecraft early.

It currently spawns in caves. You can right-click a block onto it to stop it from moving. If the block is wool, iron, or ice, it changes how the cube moves—causing effects like sliding, falling faster, or falling slower.

The block inside the cube can be removed using shears. If a large variant is killed, it splits into two smaller ones. These smaller cubes can grow into large ones after 20 minutes. Large Sulfur Cubes cannot be damaged while they have a block inside them.

Available Versions

Sulfur cubes for 1.21.11release

MC 1.21.11neoforge

March 22, 2026

How to Install Sulfur cubes on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.11).

Install Mod

Open the mod browser in the dashboard and search for "Sulfur cubes". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.11

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Sulfur cubes server crashes on startup – what to do?

Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.

Is Sulfur cubes compatible with neoforge?

Sulfur cubes officially supports neoforge for Minecraft 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Sulfur cubes – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Sulfur cubes 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.