Chunk Biomes

Every chunk is a different biome.

Desert against snow against jungle against cherry grove, sixteen blocks at a time, with hard edges all the way to the horizon.

For Minecraft 26.2 (Fabric).

Installing

1. Install Fabric Loader for Minecraft 26.2.
2. Put chunkbiomes-1.0.0.jar and Fabric API in your mods folder:
   • Windows: %appdata%\.minecraft\mods
   • macOS: ~/Library/Application Support/minecraft/mods
   • Linux: ~/.minecraft/mods
3. Make a new world. Biomes are chosen as chunks generate, so an existing world only changes where you have never been.

Only the server needs it. Vanilla clients can connect and play normally.

It is a real biome, not a label

The swap happens at the biome lookup itself, before anything is generated — not by repainting chunks afterwards. That means each chunk is genuinely generated as its biome: its own surface blocks, its own trees and flowers, its own mobs, its own sky colour, its own weather, its own music.

Walk one chunk north and it starts snowing. Walk one chunk back and it stops.

Each dimension keeps its own biomes

The mod asks each dimension what biomes it is capable of producing and picks from that, so:

• The overworld gets overworld biomes.
• The nether gets nether biomes — crimson forest against warped forest against basalt deltas. Because they are all still nether biomes, fortresses and bastions generate exactly as normal.
• The end gets end biomes, so the island, the outer islands and the dragon all behave.

Oceans and rivers are left out of the overworld by default, for two reasons. A world that is a third open water is dull to walk across, and strongholds choose their chunk before they check the biome — keeping the palette to land means the end portal stays reliably reachable. Water still appears: aquifers, lakes and springs are generated from noise, not from biomes.

The patchwork is seeded from your world seed, so the same seed always produces the same map.

Playing it

• Everything is nearby. Every wood type, every flower, every mob, every crop — within a couple of hundred blocks. It is the fastest early game you will ever have.
• Villages generate in strange places and often half in a biome they were not designed for.
• The weather is chaos. It can rain on you and snow on the person standing sixteen blocks away.
• Temperature edges are sharp. Ice against lava pools, cactus against spruce.
• Navigation is easy for once, because the landscape is a grid of landmarks.

Commands

Settings

A file appears at config/chunkbiomes.json the first time you run the mod.