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Create NuclearMinecraft mod for 1.21.1

A Create addon that adds nuclear reactors to Create, along with all the dangers associated with radiation!

client and servernewest supported 1.21.1TechnologyUtilityGame MechanicsDecoration
Latest version
1.20.1
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Fabric, Forge
Licence
LGPL-3.0-only
Downloads
845.8k
Updated
24 d ago
Available on
Modrinth
Space NodeOur hosting

Host Create Nuclear servers

One click and Create Nuclear 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

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Fabric, Forge21+declared8 Aug 2024
1.21Forge, Fabric, NeoForge21+declared13 Jun 2024
1.20.1Fabric, NeoForge, Forge17+declared12 Jun 2023

Download

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

1.20.1release11 Jan 2026

createnuclear-1.4.1-fabric.jar · 12.1 MB · for 1.20.1

Download latest
037d42011e19…
Older versions16
  • 1.3.2-beta.313 Dec 20251.21.11.8 MB236.2k downloads39d9691d8f00…Get
  • 1.3.2-beta.211 Nov 20251.21, 1.21.11.8 MB8.6k downloadscb2ce4425581…Get
  • 1.3.111 Nov 20251.20.11.7 MB632 downloadsa156fda98d17…Get
  • 1.3.217 Oct 20251.21.11.8 MB5.5k downloads31648bb67435…Get
  • 1.3.028 Sept 20251.21.11.8 MB55.8k downloadsa42451cdd9fe…Get
  • 1.2.227 Mar 20251.20.10.9 MB18.2k downloadsc7cdde5b9ce6…Get
  • 1.2.19 Mar 20251.20.10.9 MB20.5k downloadsc3498e16d7ee…Get
  • 1.2.03 Mar 20251.20.10.9 MB2.1k downloads9647cb873054…Get
  • 1.1.39 Feb 20251.20.10.9 MB44.6k downloads2e2acf7ea0da…Get
  • 1.1.29 Feb 20251.20.15.5 MB3.9k downloadsd91e360a2978…Get
  • 1.1.125 Jan 20251.20.15.5 MB2.1k downloads2370cefcaedd…Get
  • 1.1.022 Jan 20251.20.15.5 MB571 downloadsd25be1f8ff32…Get
  • 1.0.212 Jan 20251.20.15.4 MB1.5k downloadsb59e6c4e7ec3…Get
  • 1.0.110 Jan 20251.20.15.4 MB339 downloadsf39040e2df08…Get
  • 1.0.09 Jan 20251.20.15.4 MB455 downloads85016b9119ac…Get
  • 1.0.0-rc014 Jan 20251.20.15.4 MB217 downloads9857af78ee71…Get

Frequently asked

Does Create Nuclear work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Create Nuclear 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 Create Nuclear 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 Create Nuclear 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 Create Nuclear 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 Create Nuclear?

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 Create Nuclear under?

LGPL-3.0-only, 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 Create Nuclear?

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 Create Nuclear 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.

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Last checked 22 d 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? .