
DatapacksJava
Austin's Biomes Expansion
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.








Austin's Biomes Expansion adds new biomes and polishes old ones, creating variety while fitting in with the Vanilla style.
Features
Below is a brief rundown of what this pack contains. See the the changelog for a comprehensive list of 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.
Snowcapped
The .zip download for this pack contains a file called snowcapped.json which can be used at https://snowcapped.jacobsjo.eu to view and modify this pack's biome distribution and terrain splines.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.5, 1.21.6
- 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: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
Verified by MCModsHub
- Downloads as Austin's Biomes Expansion [v1.2.1] [MC1.21.5–1.21.6].zip
- Download size: 574 KB
- Download link checked 29 Aug 2026 — working
These come from our own check of the pack file, not from the source page.