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UranusMinecraft mod for 1.21.1

A Library contains animation engine, object helper and so on. Partly based on LLibrary and Citadel.

client and servernewest supported 1.21.1UtilityLibrary
Latest version
2.4.1
Loaders
NeoForge, Fabric, Forge
Licence
LGPL-3.0-or-later
Downloads
1.6M
Updated
5 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Uranus servers

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

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

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Fabric, Forge21+declared8 Aug 2024
1.20.4Forge, Fabric, NeoForge17+declared7 Dec 2023
1.20.1Fabric, NeoForge, Forge17+declared12 Jun 2023

Download

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

2.4.1release29 Apr 2026

uranus-2.4.1-1.21.1-neoforge.jar · 0.8 MB · for 1.21.1

Download latest
bb7119fc18ed
Older versions14
  • 2.2.6-bugfix.212 Mar 20261.20.10.8 MB36c2a74cbaa4Get
  • 2.2.6-bugfix12 Mar 20261.20.10.8 MBb29a2954b10aGet
  • 2.49 Sept 20251.21.10.8 MB6c0b85a49921Get
  • 2.3.223 Aug 20251.21.10.8 MBd9f5a506e841Get
  • 2.2.622 Aug 20251.20.11.0 MB57e68835c46fGet
  • 2.3.1-bugfix221 Aug 20251.21.10.8 MB5c714fb031ddGet
  • 2.3.1-bugfix7 Aug 20251.21.10.8 MBa374a62a98b2Get
  • 2.2.4-bugfix5 Aug 20251.20.11.0 MBb2c3086afd8eGet
  • 2.3.121 May 20251.21.10.8 MB0c15cf86f410Get
  • 2.34 Mar 20251.21.11.0 MB36649a41d91bGet
  • 2.2.518 Feb 20251.20.1, 1.21.11.0 MB0ed2a5d63f6fGet
  • 2.2.418 Feb 20251.20.1, 1.21.11.0 MB917048cf4300Get
  • 2.2.32 Feb 20251.21.11.0 MB7a95135dc465Get
  • 2.2.230 Jan 20251.21.11.0 MBd3043c207109Get

Frequently asked

Does Uranus work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Uranus 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 Uranus 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 Uranus 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 Uranus support?

NeoForge, Fabric, Forge. 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 Uranus?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Uranus under?

LGPL-3.0-or-later, 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 Uranus?

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 Uranus 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. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

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

Last checked 2 mo ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .