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ChunkReroll
ModsJava

ChunkReroll

by grateloup · on Modrinth

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Minecraft version

⬇ Download for 26.1–26.2 · Bukkit⬇ Download for 1.21.8–1.21.11 · Bukkit⬇ Download for 26.1–26.2 · Fabric⬇ Download for 1.21.8–1.21.11 · Fabric⬇ Download for 26.1–26.2 · Paper⬇ Download for 1.21.8–1.21.11 · Paper⬇ Download for 26.1–26.2 · Purpur⬇ Download for 1.21.8–1.21.11 · Purpur⬇ Download for 26.1–26.2 · Spigot⬇ Download for 1.21.8–1.21.11 · Spigot
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
ChunkReroll — screenshot 1

Each chunk is replaced only once with a random block, in a safe and optimized way. No shifting, no broken structures, compatible with Paper 1.21.11.

📖 Full Description (CurseForge)

ChunkReroll is a Paper plugin that completely transforms Minecraft exploration: 👉 Each chunk is replaced only once with a single type of block, chosen randomly, while preserving important structures and server stability.

✨ Main Features

🔹 1 unique block per chunk

🔹 A chunk can only be modified once

🔹 Progressive generation (optimized, no freezing)

🔹 Paper compatible with 1.21.11

🔹 No farming possible, no infinite rerolls

🔒 Server Security & Stability

ChunkReroll is designed to never break the world:

✅ Existing chests are never replaced

✅ Breeders are preserved

✅ The End portal (blocks and frames) is protected

✅ Decorated vases are protected

❌ No chests, trapped chests, shulkers, barrels, or hoppers can spawn

❌ No redstone, no ticking blocks, no falling blocks

❌ No lag, no item rain, no chunk corruption

🌊 Blocks Allowed

Only solid and stable blocks

Water and lava allowed (configurable)

⚙️Simple configuration

enabled: true reroll_once_per_chunk: true replace_air: false y_min: -64 y_max: 319 blocks_per_tick: 2500 never_replace: - BEDROCK - END_PORTAL - END_PORTAL_FRAME allow_liquids: - WATER - LAVA 🎮Perfect for

Custom survival servers

Exploration challenges

Original SMPs

Controlled mayhem experiments

Servers that want zero lag and zero bugs

Quick facts

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

Verified by MCModsHub

These come from our own check of the pack file, not from the source page.

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