Dimension Expansion

Dimension Expansion

Designed for 1.21.1, add new dimensions to your modpack with teleporter blocks and fun new features. Deep Beneath, Mining Dim and Stoneblock. More to come!

by
876 Downloads
neoforgeutilityworldgen
Rent Server with this Mod

Screenshots

The Mining Dimension
The Deep Beneath
Stone Block?

About this Mod

Dimension Expansion

A Dimension Mod for Minecraft 1.21.1, inspired by Extra Utilities 2 – Deep Dark and The Beneath / Deep Dank Discover The Deep Beneath, a vast underground realm of eternal night, thick darkness, and relentless danger.

The Mining Dimension inspired by Aroma1997s Dimensional World as well as other more modern takes on Mining Dimensions. Our mining dimension is flat with no features except ores underground.

And a Stoneblock dimension, which is only working conceptually. It's obviously inspired by the same named modpacks but really the goal here is to add a dimension that could be utilized in modpacks for different purposes or maybe in lieu of the mining dimension.


The Mining Dimension

A peaceful alternative for resource gathering.

  • A superflat world with a large layer of Stone, then Deepslate, then Netherrack and then End Stone with ores in each layer. but with no caves or caverns.
  • Completely free of hostile mobs.
  • Higher Y-level (Y=208) terrain for large-scale mining or automation builds.

The Stone Block Dimension (not fully implemented)

A true builder’s dream — or miner’s challenge.

  • Solid from bedrock to bedrock (-64 to 320).
  • Filled entirely with stone and deepslate, packed with ores.

Fully Data-Driven and Customizable

All dimensions are configurable via datapacks, letting you tweak:

  • Ores and biome features
  • Mob behavior and spawn rates
  • Noise settings, blocks, and light rules

For modpack developers, this means you can completely reshape these worlds without touching code.

See the GitHub Wiki for detailed guides on datapack customization, noise settings, and mod integration.


Actively Developed

These dimensions are only the beginning — expect more biomes, structures, and challenges in future updates. Have ideas or feedback? We’d love to hear from you.

Need Help or Want to Share Your Builds? Join our Discord — the community is always growing, and we can’t wait to see what you create!

Available Versions

Dimension Expansion 1.2.8release
MC 1.21.1neoforge
February 23, 2026
Dimension Expansion 1.2.7release
MC 1.21.1neoforge
February 14, 2026
Dimension Expansion 1.2.6release
MC 1.21.1neoforge
February 14, 2026
Dimension Expansion 1.2.5release
MC 1.21.1neoforge
December 10, 2025
Dimension Expansion 1.2.4release
MC 1.21.1neoforge
December 9, 2025

How to Install Dimension Expansion on Your Server

1

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

2

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).

3

Install Mod

Open the mod browser in the dashboard and search for "Dimension Expansion". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.1

Server-side

Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Dimension Expansion server crashes on startup – what to do?

Most common cause: wrong neoforge 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 Dimension Expansion compatible with neoforge?

Dimension Expansion officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Dimension Expansion – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Dimension 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.

Rent Modded Server

Install Dimension Expansion with just one click on your server.

Recommended RAM
6 GBab €12/mo
Min. 4 GB | +1 GB pro 5 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

1.21.1