
Custom dimensions
This is an add-on currently under development; only the sample dimensions of the new addition are available in the Minecraft preview.
⬇ Download on CurseForge





Summary:
This is an add-on that adds new dimensions through the official file, allowing for custom dimensions within the game. It is currently in the testing.
What it adds: it brings a /sg:Dimensions command that allows access to the menu with the dimensions which are void arena, sky lounge and endless runner
Key Details:
The dimensions file was converted to JS, as the official version is in TS.
Height Limit: These dimensions can exceed 400 blocks. Whether this remains a permanent feature in Minecraft is currently unknown.

There's not much of a secret here; just type the command /sg:dimensions and a menu will open.

In the future I might add the option to create new empty dimensions for building in creative mode and perhaps add the possibility of making a portal.
Rules:
- ❌Distribute as your
- ✅Making modifications for personal use.
- ✅Create an improved version and share the modifications with the creator.
- ❌Using this code for profit
- ❌Make modifications but obscure them for sharing.
- ❌Sharing without proper credit and permission.
- Pack type: .mcaddon — behaviour and resource pack in one file
- Manifest requires Minecraft 1.21.130 or newer
- Needs Beta APIs switched on in the world settings
- Complete pack — everything it depends on is inside the file
- Download size: 7.0 MB
- Download link checked 26 Aug 2026 — working
These come from our own check of the pack file, not from the source page.