NuclearCraft

NuclearCraft

A complex nuclear engineering mod for Minecraft!

by
39.7K Downloads
forgetechnology
Rent Server with this Mod

About this Mod


A complex nuclear engineering mod for Minecraft!

Head here for NuclearCraft: Overhauled!
YouTube channel for help with the mod!
Join the Discord server!

Features

  • Forge Energy, RF, IC2 EU and GTCE EU compatibility
  • Intricate multiblock fission reactors
  • Multiblock heat exchangers and steam turbines
  • Large multiblock tokamak fusion reactors
  • In-depth nuclear fuel system featuring many fuel types
  • Complex fusion system of multiple fuel combinations
  • Full JEI compatibility
  • CraftTweaker recipe support
  • Complete Mekanism gas support
  • Fallout-style radiation system
  • More materials, weapons, tools and armour

Planned

  • Pebble-bed fission reactors
  • Inertial confinement fusion
  • More futuristic machinery

JEI, The One Probe and ConnectedTexturesMod are highly recommended!
Changelog
CraftTweaker Help

Permissions: feel free to go ahead and use this mod in your pack if you wish!

Head to the Wiki, the YouTube Channel or use the in-game tooltips for help with progression through the mod. Also feel free to just ask me directly if you need more info!

Thanks to QuantumTraverse for the mod logo!

Available Versions

NuclearCraft 2.19arelease
MC 1.12.2forge
May 26, 2025
NuclearCraft 2.19release
MC 1.12.2forge
May 15, 2024
NuclearCraft 2.18zzzrelease
MC 1.12.2forge
May 24, 2022

How to Install NuclearCraft on Your Server

1

Order Server

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

2

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.12.2).

3

Install Mod

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

Compatibility

Mod Loaders

forge

Minecraft Versions

1.12.2

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

NuclearCraft server crashes on startup – what to do?

Most common cause: wrong forge 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 (1.12.2). You can switch loaders with one click in the panel.

Is NuclearCraft compatible with forge?

NuclearCraft officially supports forge for Minecraft 1.12.2. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with NuclearCraft – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if NuclearCraft 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 NuclearCraft 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
MIT License
Server-side
Required

Supported Versions

1.12.2