ChunkReroll

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