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ZetaMinecraft mod for 1.21.1

Comprehensive Load-Bearing Library for Modular Mods

client and servernewest supported release 1.21.1
Latest version
1.1-40
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
Forge, NeoForge
Licence
CC-BY-NC-SA-3.0
Downloads
13.3M
Updated
6 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Zeta servers

One click and Zeta is installed with the right loader, on hardware built for it.

  • 1.21.1
  • Forge
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Zeta declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

From Zeta’s own host. Nothing is re-hosted here.

Most recently published release

1.1-40release24 Apr 2026

Zeta-1.1-40.jar · 0.7 MB · for 1.21.1 · NeoForge

Download this release
a81dcf44f2bf…
Older versions23
  • 1.1-3917 Feb 20261.21.10.7 MB121.7k downloadsef4d2ad96a30…Get
  • 1.21.1-1.1-3814 Feb 20261.21.10.7 MB12.8k downloads5f875beb216f…Get
  • 1.20.1-1.0-3115 Dec 20251.20.11.0 MB1.5M downloads0b14233864d8…Get
  • 1.20.1-1.0-3017 Apr 20251.20.11.0 MB6.5M downloadsc74dc0e007de…Get
  • 1.20.1-1.0-2929 Mar 20251.20.11.0 MB954.0k downloads19f8a4f15729…Get
  • 1.20.1-1.0-2816 Mar 20251.20.11.0 MB104.0k downloads1766bc3617ce…Get
  • 1.20-279 Mar 20251.20.11.0 MB450 downloadsbd597da9d4dc…Get
  • 1.20-268 Mar 20251.20.11.0 MB249 downloads2707c55dfe3e…Get
  • 1.20.1-1.0-245 Aug 20241.20.10.9 MB3.4M downloads929032eb6dbe…Get
  • 1.20.1-1.0-234 Aug 20241.20.10.9 MB1.2k downloads2274861a549a…Get
  • 1.20.1-1.0-22c4 Aug 20241.20.10.9 MB685 downloadsbb8167b2b33f…Get
  • 1.20.1-1.0-214 Aug 20241.20.10.9 MB705 downloads1f9646885f33…Get
  • 1.20.1-1.0-203 Aug 20241.20.10.9 MB3.4k downloads584b097cf7ea…Get
  • 1.20.1-1.0-1911 Jun 20241.20.10.9 MB83.2k downloads1648e3e61f23…Get
  • 1.20.1-1.0-1811 Jun 20241.20.10.9 MB54.7k downloads82270ffad6e1…Get
  • 1.20.1-1.0-1711 Jun 20241.20.10.9 MB725 downloads3bc371243fa8…Get
  • 1.20.1-1.0-1611 Apr 20241.20.10.9 MB58.2k downloads4eaa29b1a3c0…Get
  • 1.20.1-1.0-159 Apr 20241.20.10.9 MB2.2k downloads9f36c2643986…Get
  • 1.20.1-1.0-142 Mar 20241.20.10.9 MB50.8k downloads29c98fff734d…Get
  • 1.20.1-1.0-133 Feb 20241.20.10.8 MB31.2k downloads0de8986fa0ec…Get
  • 1.20.1-1.0-122 Feb 20241.20.10.8 MB9.0k downloads6da8eb3ab2f7…Get
  • 1.20.1-1.0-1130 Jan 20241.20.10.8 MB298 downloadsefce5e297831…Get
  • 1.20.1-1.0-1030 Jan 20241.20.10.8 MB677 downloads270eb83e22d6…Get

Frequently asked

Does Zeta work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Zeta declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Zeta support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Zeta on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Zeta support?

Forge, NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Zeta?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Zeta under?

CC-BY-NC-SA-3.0, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Zeta?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Zeta safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Used by

1 project lists Zeta as a required dependency.

QuarkA Quark is a very small thing. This mod is a collection of small things...

Details from Modrinth, where the author last updated it on 24 Apr 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .