
Dimension Fixer
Fix hardcoded behavior of dimension mainly for custom dimension.
About this Mod
Dimension Fixer
Dimension Fixer can fix hardcoded behavior of dimension mainly for custom dimension.
Features
- Fix advancement progress and recipe unlock.
- Fix end dragon fight not starting and exit portal not created (<=[MC 1.21.11])
- Fix end gateway not working.
- Fix client The End music not playing.
- Fix datapack dimension location predicate check.
- Fix portal search radius (>=0.0.6)
- Fix sleeping (>=0.0.6 + <=[MC 1.21.11])
- Override flat check (>=0.0.9)
- Simple configuration and datapack support.
Can be added to existing modpack or world and can be removed from existing world easly. Please make sure backup your world first.
Suggest new features for vanilla or modded dimension on GitHub Discussion or Discord would be appreciated.
Usage
You can configure this mod by config or data driven by using datapack.
Config (dimensionfixer.json)
{
"aliases": {
"minecraft:overworld": {
"dimension_types": [
"minecraft:overworld",
"minecraft:overworld_caves",
"customdimensiontype:overworld_mirror"
],
"dimensions": [
"customdimension:overworld_mirror"
]
},
"minecraft:the_nether": {
"dimension_types": [
"minecraft:the_nether",
"customdimensiontype:the_nether_mirror"
],
"dimensions": [
"customdimension:the_nether_mirror"
]
},
"minecraft:the_end": {
"dimension_types": [
"minecraft:the_end",
"customdimensiontype:the_end_mirror"
],
"dimensions": [
"customdimension:the_end_mirror"
]
},
"customdimension:dimension": {
"dimension_types": [
"customdimensiontype:dimension_mirror"
],
"dimensions": [
"customdimension:dimension_mirror"
]
}
},
"tweaks": {
"customdimension:dimension": {
"fix_sleeping": true,
"fix_portal_search_radius": true,
"override_flat_check": true
}
}
}
Datapack
Aliases
In your datapack namespace folder mostly minecraft, create "dimensionfixer" folder with "alias" folder inside. In alias folder create json file with your dimension name with content:
{
"dimension_types": [
"test:one"
],
"dimensions": []
}
-> data\{namespace}\dimensionfixer\alias\{dimension}.json
Tweaks
In your datapack namespace folder, create "dimensionfixer" folder with "tweak" folder inside. In tweak folder create json file with your dimension name with content:
{
"fix_sleeping": true,
"fix_portal_search_radius": true,
"override_flat_check": true
}
-> data\{namespace}\dimensionfixer\tweak\{dimension}.json
All tweaks is disabled by default. Fix sleeping is enabled by default for Overworld alias.
Issues
- [Radium]
Use Canary instead for better mod compatibility or manually disable "mixin.ai.poi.fast_portals". - [YUNG's Better End Island]
Dragon Fight does not start on alias dimension (<=[MC 1.21.11])
There are no new compatibility issues or bugs being reported. Please report it on GitHub so it can be fixed.
Support
🟩 26.1-26.1.2 / 🟩 1.21.1 / 🟥 1.21-1.21.11 / 🟩 1.20.1 / 🟪 1.16.5 / 🟪 1.12.2
🟩 Supported
🟥 Support Dropped
🟨 In Progress
🟪 Considered
Important Note
This mod only fixes hardcoded dimension behavior. It doesn't link portal (use Dimension Link).
Made for personal gameplay tinkering, server customization, and modpack creation. Feel free to use in modpacks, videos, stream, or similar media. Consider help me financially if you like this mod, I will be really grateful.
Available Versions
How to Install Dimension Fixer on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "Dimension Fixer". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2, 26.1.1, 26.1 (+13 more)
Server-side
~ OptionalRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Dimension Fixer 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 3 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.
Is Dimension Fixer compatible with fabric and forge and neoforge?
Dimension Fixer officially supports fabric, forge, neoforge for Minecraft 26.1.2, 26.1.1, 26.1. 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 Dimension Fixer – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Dimension Fixer 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.
Similar Mods
Rent Modded Server
Install Dimension Fixer with just one click on your server.






