Dimension Fixer

Mod

by mahmudindes

Fix hardcoded behavior of dimension mainly for custom dimension.

Type

Mod

CurseForge Downloads

41,541

CurseForge ID

1200582

Modrinth Downloads

53,197

Modrinth ID

hJmXo78w

Last Updated

Nov 7, 2026

Description

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.