How do I install Zeta?

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 Modrinth — not every file is mirrored on our own servers.

What Minecraft version does Zeta work with?

The listing gives Minecraft 1.21.1. This is the version stated by the author or source site, not something we verified ourselves.

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Zeta

Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.

by Vazkii · on Modrinth

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Open in MC Java Mods Get it on Google Play →

About

Zeta is a comprehensive load-bearing library for Modular gameplay mods. It is built as a retooling of the original Quark module system and serves as a successor to AutoRegLib.

Documentation is not available yet, as it is not fully finished. Other mods will be able to use it soon, keep an eye on this space.

There is no need to download Zeta unless some other mod requires it, as it does not contain any content on its own.

Zeta — Minecraft Java mod, screenshot 5

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.21.1
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 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.

File checked by MCModsHub

Ships as Zeta-1.1-40.jar — drop this file into the mods folder
Download size: 746 KB
Download link checked 25 Oct 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 1.21