The Upside Down

The Upside Down

A deadly dimension full of mobs and darkness, double mob drops and unique loot. Inspired by Darkhax and the Hunting Dimension from the good ole days!

by
424 Downloads
neoforgeworldgen
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Screenshots

Upside Down Portal - Birch Frames
Upside Down Portal - Oak Portal Frames
Vindicators wait for you!

About this Mod

A new dark dimension, inspired by the Hunting Dimension by Darkhax.

Build a 14 block portal, light it with the Blood Stone or by sacrificing a chicken in the portal frame.

Mobs in the Upside Down are double health, stable footed (no knockback) and spawn everywhere.

They are armored and can have enchanted weapons but they drop double loot (vanilla drops only)

By default, Simple Burnout Torch is a required dependency and is configured so torches placed in The Upside Down will burnout over time, this adds a level of complication along with the eternal darkness and tougher mobs.

If you use Reliquary, you can disable mob drops in the Reliquary config and they will be injected into the loot tables of mobs that spawn in The Upside Down.

The point of this is to give pack makers a reason to send players to The Upside Down.  Reliquary drops can be very powerful when incorporated into crafting recipes.



💬 Need Help?

If you have any questions, suggestions, or would like to share your creations,
join us on Discord — we'd love to see what you're building!

Available Versions

The Upside Down 1.0.8release
MC 1.21.1neoforge
March 6, 2026
The Upside Down 1.0.7release
MC 1.21.1neoforge
December 10, 2025
The Upside Down 1.0.5release
MC 1.21.1neoforge
November 5, 2025
The Upside Down 1.0.4release
MC 1.21.1neoforge
October 15, 2025

How to Install The Upside Down on Your Server

1

Order Server

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

2

Set neoforge Loader

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

3

Install Mod

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

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.1

Server-side

Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

The Upside Down server crashes on startup – what to do?

Most common cause: wrong neoforge 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 The Upside Down compatible with neoforge?

The Upside Down officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with The Upside Down – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if The Upside Down 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 The Upside Down with just one click on your server.

Recommended RAM
6 GBab €12/mo
Min. 4 GB | +1 GB pro 5 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

1.21.1