SmallerVeins
A simple Minecraft mod that gives you more control over ore vein generation. This project was made to give players an actual incentive to make farms/factories, not intended to be played on its own (you could definitely do that as well if you want to)
Features
- Limit vein size – Cap the maximum size of all ore veins. From personal experience, Sizes smaller than 4 result in almost no ore veins at all, especially in caves, since most attempts there fail anyway
- Reduce spawn chance – Make ore veins generate less frequently
Configuration
| Option | Default | Range | Description |
|---|---|---|---|
maxVeinSize |
4 | 1–64 | Maximum size of any ore vein |
genChance |
100 | 0–100 | Chance (%) that a vein generates at all |
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.21.2, 1.21.3
- 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 Modrinth — 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 smallerveins-1.0.0.jar — drop this file into the mods folder
- Download size: 11 KB
- Download link checked 21 Aug 2026 — working
These come from our own check of the pack file, not from the source page.