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Austin's Biomes Expansion Data Pack (1.21.4, 1.20.6) – Vanilla Plus Overworld Biome Enhancements
Austin's Biomes Expansion Data Pack introduces tweaks, additions, and overhauls to Minecraft’s Overworld biomes, enhancing their diversity and beauty…
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Austin’s Biomes Expansion Data Pack introduces tweaks, additions, and overhauls to Minecraft’s Overworld biomes, enhancing their diversity and beauty while staying true to the vanilla experience. Perfect for players who want a richer, more immersive world to explore and build in! Enjoy playing this data pack!
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Features:
- New surface, cave, and ocean biomes! (See the gallery for pictures)
- An overhaul to water, sky, and fog colors. Biomes within the same temperature regions now generally match colors (with some exceptions).
- An overhaul to flower generation. Biomes have more unique sets of flowers, and all flowers can be grown by using bone meal in biomes where they can be found naturally. They also generate in less varied patches.
- New temperature-based variants have been added for Rivers, Beaches, and Stony Shores.
- An overhaul to cave biomes. Caves are now always a separate biome from the surface above. Multiple generic cave biomes have been added, as well as unique cave biomes for mountains, badlands, and mushroom islands.
- An overhaul to oceans. Oceans are now slightly bigger, with a much deeper region added that’s deeper than deep oceans. Various biomes have been added for abyssal plains and ocean trenches. Trenches are so deep that even diamond ore can be found if you’re willing to dive for it!
- A new advancements tab called “Exploration”, along with multiple advancements for discovering specific groups of biomes. The “Adventuring Time” advancement has been replaced with a new functionally identical advancement in the Exploration tab.
Screenshots:










Austin’s Biomes Expansion Data Pack Download Links
For Minecraft 1.21.4
For Minecraft 1.21.1, 1.21, 1.20.6
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.4, 1.20.6
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
Verified by MCModsHub
- Download size: 522 KB
- Download link checked 17 Jun 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.