BlockDimensions

BlockDimensions

DimensionBlocker is a simple Fabric mod for Minecraft that allows server admins to block access to certain dimensions and control portal usage.

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About this Mod

DimensionBlocker Mod

English

Overview:
DimensionBlocker is a simple Fabric mod for Minecraft that allows server admins to block access to certain dimensions and control portal usage.

Features:

  • Prevent players from entering the Nether or End.
  • Automatically destroy any Nether portal blocks that are created.
  • Block the placement of Ender Eyes into End Portal Frames if End is disabled.
  • FireCharge and Flint & Steel usage is preserved correctly in Survival mode.
  • Configurable via config/blockdimensions.json.

Commands:
´´´

  • /blocknether <true|false>: Enable or disable Nether portal blocking.
  • /blockend <true|false>: Enable or disable End portal usage.
    ´´´

Usage:

  • Admins can toggle dimension access using the commands.
  • Players attempting to enter blocked dimensions will receive a message in their action bar.
  • Nether portal blocks are destroyed immediately if a player tries to activate them while blocked.

Deutsch

Übersicht:
DimensionBlocker ist eine einfache Fabric-Mod für Minecraft, die Server-Admins erlaubt, den Zugang zu bestimmten Dimensionen zu blockieren und die Nutzung von Portalen zu kontrollieren.

Funktionen:

  • Verhindert, dass Spieler in den Nether oder das End reisen.
  • Zerstört automatisch alle erstellten Netherportal-Blöcke.
  • Blockiert das Einsetzen von Enderaugen in Endportalrahmen, wenn das End deaktiviert ist.
  • FireCharge und Feuerzeug werden korrekt in Survival-Modus behandelt.
  • Konfigurierbar über config/blockdimensions.json.

Befehle:
´´´

  • /blocknether <true|false>: Netherportal-Blockierung ein- oder ausschalten.
  • /blockend <true|false>: Nutzung des Endportals ein- oder ausschalten.
    ´´´

Benutzung:

  • Admins können den Zugriff auf Dimensionen über die Befehle steuern.
  • Spieler, die versuchen, eine gesperrte Dimension zu betreten, erhalten eine Nachricht in der Aktionsleiste.
  • Netherportal-Blöcke werden sofort zerstört, wenn ein Spieler versucht, sie zu aktivieren, während der Block aktiv ist.

Available Versions

BlockDimensions 1.0.0release
MC 1.21.11fabric
February 1, 2026
BlockDimension by Mcjunky33 1.0 1.21.9-1.21.11release
MC 1.21.9, 1.21.10fabric
December 11, 2025

How to Install BlockDimensions on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

3

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11, 1.21.10, 1.21.9

Server-side

~ Optional

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

BlockDimensions 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 (1.21.11). You can switch loaders with one click in the panel.

Is BlockDimensions compatible with fabric?

BlockDimensions officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with BlockDimensions – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if BlockDimensions 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 BlockDimensions with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
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NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Optional

Supported Versions

1.21.111.21.101.21.9