How do I install Worldgen Flexiblifier?

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 Worldgen Flexiblifier 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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Worldgen Flexiblifier

by lukebemish · on CurseForge

Adds flexibility to various aspects of vanilla worldgen, allowing customization of otherwise hardcoded parameters

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
Mod loader NeoForge1 build
Mod loader Quilt1 build

Minecraft version

Minecraft 1.20.1Newest

Minecraft 1.20.1Newest

Minecraft 1.20.1Newest

Minecraft 1.20.1Newest

⬇ Download for 1.20.1 · Fabric ⬇ Download for 1.20.1 · Forge ⬇ Download for 1.20.1 · NeoForge ⬇ Download for 1.20.1 · Quilt

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.

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Worldgen Flexiblifier

A tool for making various aspects of Minecraft worldgen more flexible. Meant to be used by mod authors or modpack/datapack developers. Artifacts are available on CurseForge and Modrinth, or on my maven: https://maven.lukebemish.dev/releases/dev/lukebemish/worldgenflexiblifier/

Features

For more documentation on features, see the wiki.

Dripstone Generation

The vanilla dripstone feature types (dripstone_cluster, large_dripstone, and pointed_dripstone) can now be configured to place blocks other than dripstone.

Ore Veins

A new feature type, worldgenflexiblifier:ore_vein, has been added, which re-implements the vanilla "large ore veins" (which contain a filler stone and some ore blocks) so that custom veins can easily be added.

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.

Verified by MCModsHub

Ships as worldgenflexiblifier-fabriquilt-1.20.1-1.0.0.jar — drop this file into the mods folder
Download size: 172 KB
Download link checked 27 Sept 2026 — working

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

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