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BiomeExpansion

make full biomes swap from placing a block
by Mysticpasta1
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974 downloads
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Updated Jul 6, 2026
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Utility & QoL World Gen

🌱 BiomeExpansion

Biome Expansion is a Minecraft Forge mod for 1.19.4+ that allows players to dynamically transform the world’s biomes through block placement.
Whether by planting a sapling, placing a special block, or interacting with the environment, you can shift entire regions into new, vibrant biomes.


✨ Features

  • 🔄 Biome Transformation – Placing certain blocks (like saplings) will convert the entire biome they are placed in.
  • 🌍 Full-Biome Swaps – No radius limits. The whole biome section changes to match the target biome.
  • ⚙️ Configurable Behavior – Decide which blocks can trigger biome changes and what biomes they correspond to.
  • 🎨 Immersive Gameplay – See grass, sky colors, mob spawns, and particles update immediately after transformation.


📦 Installation

  1. Download and install Minecraft Forge 1.19.4+.
  2. Place the Biome Expansion .jar file into your mods folder.
  3. Launch Minecraft with the Forge profile.

⚡ Compatibility

  • Works alongside biome-adding mods like Biomes O’ Plenty.
  • Multiplayer-friendly: biome changes are synced to all players automatically.

📜 License

This project is released under the MIT License. Feel free to fork, modify, or contribute.


biomeexpansion-1.21.1-1.0.1.jar
MC Client, NeoForge, 1.21.1, Server
Release 2025-08-21 Get
biomeexpansion-1.20.1-1.0.0.jar
MC Client, 1.20.1, Forge, Server
Release 2025-08-20 Get

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