Create Nuclear Mod for Minecraft 1.20.1, 1.21.1
A Create addon that adds nuclear reactors to Create, along with all the dangers associated with radiation!
⚠️ WARNING FOR V2 UPDATE ⚠️
If you are updating an existing world to V2, you MUST completely dismantle your active reactors before updating!
Leaving an old reactor assembled could result in corruption or an immediate nuclear meltdown.

About
Create nuclear is a mod that adds a whole nuclear system to the create mod. An optimized reactor can now produce over eight millions SU.
Create nuclear also adds Uranium and Thorium ores, and all the refining process to create and power the reactor automatically. You can even build setups from infinite sources like cobblestone with a complex refining process that exploits all the potential of create appliances.
New in V2:
- Reactor Tiers: Build Tier 1, Tier 2, and Tier 3 reactors for higher energy outputs and heat capacities.
- Coolant System: Use new fluids like Nitrogen to balance your reactor's heat and prevent meltdowns.
- Radiation: Radioactive items now emit ambient radiation. Protect yourself using the new Iodine system and Anti-Radiation armor.
- Meltdowns & Biomes: A reactor meltdown will now trigger a massive nuclear explosion, leaving behind a hostile Irradiated Land biome.

Wiki
Need help building your reactor or understanding the new mechanics? Check out our Official Wiki!

Usage
Fabric
You need to install first the Create Fabric & Fabric API mod.
We are now compatible with JEI, REI, EMI.
Forge & NeoForge
You need to install first the Create mod.
We are now compatible with JEI, REI, EMI.
Socials
Join our discord server for following updates & share your feedback by clicking here
Also we have a link tree for all our socials, click here
Localization
If you want to help us with translations, we have opened a Crowdin project. Click here.
Source Code
Forge
https://github.com/Create-Nuclear-Team/CreateNuclearForge
NeoForge
https://github.com/Create-Nuclear-Team/CreateNuclearNeoForge
Fabric
https://github.com/Create-Nuclear-Team/CreateNuclearFabric
Credits
The nuclear explosion effects and visuals in V2 are based on code originally created by the Alex's Caves team, which we then adapted and reworked to fit the specific needs of our mod. A huge thanks to them for their incredible work!
How to install Create Nuclear
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 1.20.1–1.21.1 on Fabric, Forge or NeoForge automatically.
Launch the game
A profile with it appears in the launcher: click “Play”.
Manually
Install Fabric, Forge or NeoForge
The loader must match the game version of the mod file, for example Minecraft 1.21.1. After installing it, a separate profile appears in your launcher.
Download the file for your version
In the version list above, pick the file createnuclear-1.3.2-beta.3-neoforge.jar (1.8 MB) for your game version and loader.
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: Create Nuclear should be in the list.
Minecraft 1.21.1 runs on Java 21: with a different Java version the game may close right after launch.
Versions
With dependencies
| Minecraft | Loader | File | Date | Actions |
|---|---|---|---|---|
| 1.20.1 | Forge | createnuclear-2.0.0-forge.jar8.7 MB 33 | ||
| 1.20.1 | Fabric | createnuclear-1.4.1-fabric.jar12.1 MB 10 | ||
| 1.21.1 | NeoForge | createnuclear-1.3.2-beta.3-neoforge.jar1.8 MB 66 | ||
| 1.20.1 | Fabric | createnuclear-1.0.0-rc-01-local+1.20.1.jar5.4 MB |
FAQ
Which Minecraft versions does Create Nuclear work on?
There are files for 1.21.1, 1.20.1. The newest is 1.21.1.
Does Create Nuclear need other mods?
The author lists no required dependencies: the Fabric, Forge or NeoForge loader is enough.
Which Java does Create Nuclear need?
Minecraft 1.21.1 runs on Java 21. If the game closes right after launch, the usual cause is the wrong Java version in the profile settings.
Where can I download Create Nuclear safely?
On this page: the file createnuclear-1.3.2-beta.3-neoforge.jar (1.8 MB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: c4349006fd07e614b0de3c5982d7f0d0a818c98c.
Reviews
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