Region Unexplored - Expansion datapack for 1.21.1!
The original author has since deleted their accounts off of curseforge and not provided any updates for months.
Why make a datapack port? The original update for 1.21.1 was severely broken and caused crashing when creating a world (namespaces were changed for 1.21.1). I have fixed the issues and made it into a datapack rather than a mod in itself.
Check out the original mod for a working 1.20.1 version: https://modrinth.com/mod/regions-unexplored-expansion
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 24w18a, 24w19a, 24w19b
- 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 RU-Expanded.zip
- Download size: 108 KB
- Download link checked 9 Sept 2026 — working
These come from our own check of the pack file, not from the source page.