Overworld Mirror

Just adds a new dimension that is nearly a mirror of the overworld

2.1K Downloads

fabricforgeneoforgeworldgen

Rent Server with this Mod

Screenshots

About this Mod

This mod adds a new dimension to the world which is a mirror of the overworld. You can adjust the seed, worldtype, generatorsettings and movement factor in the config file.

This mod require uteamcore!

The portal is created the following way:
Portal Frame before creating the portal

Shift + right click a flower with the bonemeal
Portal after creating one

Here is a Video how to create the portal: https://i.imgur.com/lmkGDqE.mp4

This mod can be packed in every modpack you want.

Sourcecode is linked above and is available under Apache License 2.0.

Report Bugs on github.

Available Versions

Overworld-Mirror-NeoForge-1.21.1-1.8.0.25release

MC 1.21.1neoforge

May 22, 2025

Overworld-Mirror-Forge-1.21.1-1.8.0.25release

MC 1.21.1forge

May 22, 2025

Overworld-Mirror-Fabric-1.21.1-1.8.0.25release

MC 1.21.1fabric

May 22, 2025

Overworld-Mirror-NeoForge-1.21.1-1.8.0.24release

MC 1.21.1neoforge

March 4, 2025

Overworld-Mirror-Forge-1.21.1-1.8.0.24release

MC 1.21.1forge

March 4, 2025

How to Install Overworld Mirror on Your Server

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).

Install Mod

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

Compatibility

Mod Loaders

fabricforgeneoforge

Minecraft Versions

1.21.1

Server-side

✓ Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Overworld Mirror 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 4 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is Overworld Mirror compatible with fabric and forge and neoforge?

Overworld Mirror officially supports fabric, forge, neoforge for Minecraft 1.21.1. 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 Overworld Mirror – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Overworld Mirror 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.