NuclearCraft Mod Wiki

NuclearCraft is a technical mod focused on the utilization of nuclear physics for energy production. It supports multiple power systems including Forge Energy (FE), Redstone Flux (RF), IndustrialCraft 2 Energy Units (EU), and GregTech Community Edition EU. The mod is designed for players who enjoy complex design challenges, offering three distinct methods of power generation: Solid-Fuel Fission, Molten Salt Fission, and Tokamak Fusion.

Beyond power, the mod introduces a suite of single-block machines for material processing, a deep isotope system, and a realistic radiation mechanic that affects both the player and the environment. It is highly configurable and intended to be the centerpiece of advanced technical modpacks.

NuclearCraft adds a unique hostile mob to the game to populate its radioactive environments.

Feral Ghoul

Feral Ghouls are irradiated humanoids that spawn exclusively in the Nuclear Wasteland biome. They are faster and more aggressive than standard zombies.

• Health: 20 (10 hearts)
• Attack Damage: 4 (2 hearts) + Radiation Poisoning
• Behavior: They sprint toward players and jump during attacks. Their hits inflict a significant amount of radiation (approx. 18 mRad/tick) which bypasses standard armor protection.
• Drops: Carrots, Potatoes, Rotten Flesh, and occasionally Iron Ingots.

The mod introduces several new ores and alloys essential for reactor construction and fuel production.

Key Alloys

• Tough Alloy: Created by combining Ferroboron and Graphite. Used for advanced machine frames and high-tier tools.
• Hardened Metal: Created from Steel and Boron. Used for mid-tier reactor components.
• Extreme Alloy: A high-end material used for the most advanced reactor parts and radiation scrubbers.

NuclearCraft features a variety of upgradeable machines. Most machines can be improved with Speed Upgrades (increases processing speed but increases power consumption quadratically) and Energy Upgrades (reduces power consumption).

• Manufactory: The basic crusher. Turns ores into dusts and ingots into plates.
• Isotope Separator: Essential for nuclear fuel production. It splits materials into their constituent isotopes (e.g., Uranium into U-235 and U-238).
• Alloy Smelter: Combines two items into alloys (e.g., Copper + Tin = Bronze).
• Fuel Reprocessor: Recycles depleted fuel cells into useful isotopes for further fuel crafting.
• Decay Hastener: Speeds up the natural radioactive decay of isotopes.
• Melter: Turns solid materials into their molten fluid forms.
• Chemical Reactor: Combines fluids and items to create complex chemicals like Rad-Away.
• Electrolyzer: Uses power to split fluids into gases (e.g., Water into Hydrogen and Oxygen).

Solid-Fuel Fission Reactors are multiblock structures that generate power by splitting heavy atoms. They are built as cuboids (up to 24x24x24) and require careful heat management to prevent a meltdown.

Components

• Fission Controller: The heart of the reactor. Only one is allowed per structure.
• Reactor Casing: Forms the outer shell of the reactor.
• Fission Port: Used for item/fluid input/output and power extraction.
• Reactor Cell: Where the fuel is burned. Must be placed inside the structure.
• Moderators (Graphite/Beryllium): Placed adjacent to cells to increase power output and efficiency.

Cooling System

Coolers are required to remove the heat generated by fuel cells. Each cooler has specific placement rules to be active.

Tokamak Fusion Reactors are the pinnacle of power generation, fusing light nuclei at extreme temperatures. Unlike fission, fusion reactors require a massive initial energy investment to reach "Ignition Temperature" (8,000 MK).

Structure

The reactor consists of a Fusion Core surrounded by a ring of Fusion Connectors and Electromagnets. The size of the ring (Toroid) determines the power potential.

Fusion Fuels

Fuels are processed as fluids. Common combinations include:

• Hydrogen-Hydrogen: Low power, easy to maintain.
• Deuterium-Tritium: High power, very high heat.
• Deuterium-Helium-3: High efficiency, clean energy.
• Boron-11-Hydrogen: Extremely high power, requires massive heat management.

NuclearCraft features a realistic radiation system where radiation is tracked per player and per chunk. Radiation is measured in Rads.

• Background Radiation: Naturally occurring low-level radiation.
• Item Radiation: Radioactive items (like Uranium or Plutonium) emit radiation while in the inventory.
• Chunk Radiation: Reactors and spilled radioactive fluids contaminate the environment.

Effects of Radiation

As a player accumulates Rads, they suffer worsening debuffs:

1. 200 Rads: Weakness I
2. 400 Rads: Mining Fatigue I, Hunger I
3. 600 Rads: Poison I
4. 800 Rads: Wither I
5. 1000 Rads: Instant Death

Protection and Treatment

• Geiger Counter: Used to measure radiation levels in the player and the current chunk.
• Hazmat Suit: Provides significant radiation resistance when worn as a full set.
• Radiation Shielding: Can be applied to any armor in a crafting table using Lead, Iron, or Graphite.
• Rad-Away: A chemical consumable that removes accumulated Rads from the player.
• Rad-X: Increases the player's radiation resistance for a limited time.
• Radiation Scrubber: A multiblock machine that removes radiation from the chunk it is placed in.

Nuclear Wasteland

The Nuclear Wasteland is a desolate biome characterized by Dry Earth, Irradiated Grass, and a sickly green sky.

• Radiation: The biome has high background radiation levels, requiring protection to explore safely.
• Flora: Irradiated trees and glowing mushrooms.
• Structures: Abandoned bunkers and ruined laboratories can be found here, containing rare reactor components and hazmat gear.