Regions Unexplored: Expansion
Remodels vanilla biomes to match the look of Regions Unexplored biomes
Screenshots
About this Mod
Have you ever played a modpack with Regions Unexplored, but been bothered by how bland vanilla biomes looked in comparison? With this addon, most vanilla Overworld surface biomes will be brought up to par with with Regions Unexplored biomes. You will be able to find blocks, plants, and other features from Regions Unexplored in many vanilla biomes. Check out the gallery if you want too see a sample of this mod/datapack's vanilla biome overhauls.
Currently this mod only supports Regions Unexplored for 1.20.1, but support for other versions may be added in the future. This mod/datapack has so far only been tested for compatibility with Regions Unexplored, so I cannot guarantee compatibility with any other biome mods.
Feel free to use this mod/datapack in any modpack.
Credit to @.mo_mo from the Regions Unexplored Discord server and ebo2022 from Curseforge for their earlier work that this mod and data pack were based on.
Available Versions
How to Install Regions Unexplored: Expansion on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Regions Unexplored: Expansion". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.20.1
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Regions Unexplored: Expansion server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is Regions Unexplored: Expansion compatible with fabric and forge and neoforge?
Regions Unexplored: Expansion officially supports fabric, forge, neoforge for Minecraft 1.21.1, 1.20.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Regions Unexplored: Expansion – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Regions Unexplored: Expansion consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install Regions Unexplored: Expansion with just one click on your server.