Zeta Mod for Minecraft 1.20.1
Comprehensive Load-Bearing Library for Modular Mods
- downloads
- 21 downloads
- views
- 90 views
- Updated
- Updated 03.09.2026
- 1.20.1
Forge- Client and server
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.
How to install Zeta
With Millida Launcher
Install Millida Launcher
The launcher is free: download it at millida.net/launcher and sign in with any nickname.
Click “Install” on this page
The launcher opens and installs the mod for Minecraft 1.20.1 on Forge automatically.
Launch the game
A profile with it appears in the launcher: click “Play”.
Manually
Install Forge
The loader must match the game version of the mod file, for example Minecraft 1.20.1. After installing it, a separate profile appears in your launcher.
Download the file for your version
In the version list above, pick the file Zeta-1.0-31.jar (983 KB) for your game version.
Put it in the mods folder
The folder is inside .minecraft (Windows: %appdata%\.minecraft\mods). If it does not exist, create it.
Launch the loader profile
Open “Mods” in the main menu: Zeta should be in the list.
On a server
A server on Forge
The mod only works on a server with the same loader and game version, for example 1.20.1.
File goes into the server’s mods folder
Stop the server, put the mod file into the mods folder and start the server again.
Use the “To server” button
On Millida Hosting, the button at the top of the page uploads the file to your server and restarts it for you.
Minecraft 1.20.1 runs on Java 17: with a different Java version the game may close right after launch.
Versions
With dependencies
| Minecraft | Loader | File | Actions |
|---|---|---|---|
| 1.20.1 | Forge | 1.20.1983 KB 20 |
Content that requires it
FAQ
Which Minecraft versions does Zeta work on?
Only Minecraft 1.20.1: there are no files for other versions.
Is Zeta for Forge or Fabric?
Only for Forge: 1.20.1. There are no files for Fabric or NeoForge: a mod for another loader will not start.
Does Zeta need other mods?
The author lists no required dependencies: the Forge loader is enough.
Does Zeta work on a server?
Yes. Zeta works both in singleplayer and on a server.
Which Java does Zeta need?
Minecraft 1.20.1 runs on Java 17. If the game closes right after launch, the usual cause is the wrong Java version in the profile settings.
Where can I download Zeta safely?
On this page: the file Zeta-1.0-31.jar (983 KB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: 8c4a8ef0444b53ff408d5b89126285031081d92f.
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