
ModsJava
Chunk Randomizer
Replaces all blocks of every chunk you visit! Explore the randomizing world ... ... and defeat the ender dragon!
⬇ Download on Modrinth






Chunk Randomizer (Sulfur Update)
Every chunk you visit is randomized to a new blocktype!
Explore the world..
.. defeat the ender dragon.
Important: Run /rc start in chat to start the challenge. Chunk randomization only begins after this command.


🛠 Basic Commands
| Command | Description |
|---|---|
/rc start |
Activate the challenge. |
/rc stop |
Pause the challenge. |
/rc effects |
Toggle potion effects (Default: false) |
/rc fluids <true/false> |
Toggle: Should Water, Lava and Fire be randomized? (Default: false) |
/rc exclude add <block> |
Add a block to the custom blacklist |
/rc exclude clear |
Reset your custom blacklist |
/rc debug <0-3> |
Toggle debug messages for protection, blocks, and effects. |
💡 Pro Tips & Customization
- Use /rc exclude add minecraft:... to prevent a chunk from turning into a lag-fest.
- Chunk Walker Boots: They protect you from all world-randomization and effects, but they lose 10 durability per chunk.
- Status effects/curses are disabled by default. Enable or disable them using
/rc effects. Active chunk effects are removed immediately when you leave the chunk, use Chunk Walker Boots, stop the challenge, or disable effects.
Developed by Eckelsoft
Verified by MCModsHub
- Ships as ChunkRandomizer-2.3.0.jar — drop this file into the mods folder
- Download size: 1.5 MB
- Download link checked 30 Aug 2026 — working
These come from our own check of the pack file, not from the source page.