Sulfur cubes
Sulfur Cubes adds a NeoForge mob for 1.21.11 that players can move, stop and split in caves and other spaces.
What it does
Sulfur cubes spawn in caves. A right-click on a block stops the cube from moving, and the block under it changes how it slides or falls, with wool, iron and ice each giving a different effect. Smaller cubes grow into large ones after 20 minutes, and a large cube that is killed splits into two smaller ones. Large cubes cannot damage the block inside them, and shears remove that block. The mod runs on NeoForge 1.21.11 and needs the client and server both, with 1.0.0 as the latest file, published 2026-03-22 under All rights reserved.
Key features
Cave spawns
Sulfur cubes appear in caves, where players can find and interact with them.
Block-dependent movement
Wool, iron and ice underneath a cube change how it slides or falls, and faster falling is paired with slower movement.
Splitting and growing
A large cube splits into two smaller ones when killed, while smaller cubes grow large again after 20 minutes.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Does Sulfur Cubes need NeoForge?
Do players and the server both need Sulfur Cubes?
In the catalog
Sulfur cubes is one of 11,058 Mobs mods on ModsFinder, and one of 4,974 Mobs mods for NeoForge. 19,862 mods support Minecraft 1.21.11.
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What the author says
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.
Official listing
- Modrinth page
- modrinth.com/mod/sulfur-cubes-for-1.21.11
- Owner
- omena.kuusisto
- Published
- 2026-03-22
- Updated on Modrinth
- 2026-03-22
- Facts verified
- 2026-10-15