How do I install Nether Structure Tweaks?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does Nether Structure Tweaks work with?

The listing gives Minecraft 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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Nether Structure Tweaks

Java mod listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.

by murphy_slaw · on CurseForge

Small adjustments to Nether-related structures: Change Y offset for Fortresses, and restrict where Nether Portals can be lit.

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader Fabric1 build
Mod loader Forge1 build

Minecraft version

Minecraft 1.20.1Newest

Minecraft 1.20.1Newest

⬇ Download for 1.20.1 · Fabric ⬇ Download for 1.20.1 · Forge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

Nether Structure Tweaks adds a couple of options for customizing Nether-related structures.

Fortress Height

Adds a configurable y-offset for Nether Fortress placement. You might want to do this if you have changed the height of the Nether or made more extensive changes to Nether worldgen.

Portal Restrictions

Allows you to disable lighting of Nether portals outside of the bounding box of a configurable list of structures. One possible use would be to only allow portals to be lit where a ruined portal already exists.

There is also an option to remove these restrictions once a portal has been successfully lit.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.20.1
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Ships as nether_tweaks-fabric-1.20.1-1.2.0-1.jar — drop this file into the mods folder
Download size: 89 KB
Download link checked 23 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

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