Nuclearism

Nuclearism

A Mod for Minecraft Neoforge 1.21.1 that adds brand new ores machinery and nuclear tech! Similar To HBM Nuclear Tech Mod but for 1.21.1 Neoforge

by
654 Downloads
neoforgegame-mechanicstechnologyutility
Rent Server with this Mod

Screenshots

Desert Base with production machines and a Nuclear Reactor
Chicago Pile Reactors
Research Reactor about to get Scrammed!
Research Reactor Building
Steel ingot recipe and alloy furnace GUI
An Active Oil Refinery

About this Mod

Nuclearism is a Nuclear Tech Related Mod for Minecraft 1.21.1 With some New Features such as Oil, Oil Refineries, Steel Alloy, Alloy Furnace, Lead, Uranium, Plutonium, Chicago Pile Nuclear Reactor, Research Reactor, Isotopes, Foundry, Mechanical Bore, Nuclear Bomb and a Radiation System!

Nuclearism has plans to become a larger and better Minecraft Nuclear tech mod for 1.21.1!

GECKOLIB REQUIRED

Available Versions

Nuclearism 1.4.7alpha
MC 1.21.1neoforge
May 22, 2026
Nuclearism 1.4.6alpha
MC 1.21.1neoforge
April 21, 2026
Nuclearism 1.4.5alpha
MC 1.21.1neoforge
April 20, 2026
Nuclearism 1.4.4alpha
MC 1.21.1neoforge
April 13, 2026
Nuclearism 1.4.3alpha
MC 1.21.1neoforge
April 12, 2026

How to Install Nuclearism on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).

3

Install Mod

Open the mod browser in the dashboard and search for "Nuclearism". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.1

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Nuclearism server crashes on startup – what to do?

Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is Nuclearism compatible with neoforge?

Nuclearism officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Nuclearism – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Nuclearism consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Nuclearism with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
LicenseRef-All-Rights-Reserved
Server-side
Required

Supported Versions

1.21.1