Blocking Nether Access with the DimensionZ Mod in Minecraft

Controlling dimension access is essential in certain modded Minecraft scenarios. In this guide, we will use the DimensionZ mod to block access to the Nether in a simple and effective way.

1. Prepare the Data Pack Folder

Create a new folder for your data pack inside your world’s datapacks directory (e.g., .minecraft/saves/<Your_World>/datapacks/NoNetherAccess).

2. Create the pack.mcmeta File

Inside your data pack folder, create a file named pack.mcmeta and add the following content:

Minecraft 1.21.1

{
    "pack": {
        "pack_format": 26,
        "description": "Data Pack to Block Nether Access (DimensionZ)"
    }
}
    

For the latest official pack format values, visit: Minecraft Wiki – Data Packs.

3. Create the Folder Structure

Inside your data pack folder, create the following directories:

NoNetherAccess/
├─ pack.mcmeta
└─ data/
   └─ accessdenied/
      └─ dimensions/
    

4. Create the Dimension Definition File

Inside data/accessdenied/dimensions/, create a JSON file named the_nether.json and add the following content:

{
    "dimension": "minecraft:the_nether",
    "disabled": true,
    "messages": [
        "You shall not pass!",
        "This is a restricted area!",
        "Access to this dimension is forbidden!"
    ]
}
    

5. Install and Load the Data Pack

Move the data pack into your world’s datapacks folder and use the command /reload in Minecraft to load it.

6. Confirm the Nether is Blocked

Try entering the Nether. If everything is set up correctly, the game should block access and display one of the messages.

Data Pack Not Loading

Dimension Not Being Blocked

Custom Messages Not Showing

By following this guide, you have successfully blocked access to the Nether using DimensionZ. This setup ensures that players cannot enter the Nether until you modify or remove the restriction.

For further customizations, you can add conditions or expand this to other dimensions using the same method.