How do I install LiveWorldgen?

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 LiveWorldgen 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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LiveWorldgen

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

by Scimiguy · on CurseForge

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 →

What is LiveWorldgen?

LiveWorldgen is a dev tool specifically to only be used in development environments for people who are working on worldgen content such as features, custom noise settings, carvers, etc. and don't want to have to restart the game or reload in order to see how the settings affect the world.

This allows you to leverage your IDE's hot-reload functionality to instantly change the way things are being generated, and continue testing ingame without any further delay

How does it work?

Simply make a new class that extends LiveWorldgenAccess, instantiate it somewhere it will be accessed (at the top of your mod's constructor is an easy spot), then the mod will ask your instance to provide any values you want to override in realtime. This allows you to provide new values on the fly, and see how they interact with the world.

Then whenever you make a change to any of the returning methods, reload changes in your IDE and it'll take effect immediately

Make sure you remove the class before building your mod, so that it doesn't go to production

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 LiveWorldgen-fabric-1.20.1-1.0.1.jar — drop this file into the mods folder
Download size: 18 KB
Download link checked 27 Sept 2026 — working

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

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.20