CurseForge · Minecraft mod
IC2 Radiation
Adds persistent radiation, radiation zones, player exposure, radiation sickness and a dosimeter to IndustrialCraft 2.
Quick answer
Which IC2 Radiation release should I use?
IC2 Radiation ic2radiation-1.4.jar targets 1.12.2 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is IC2 Radiation required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does IC2 Radiation ic2radiation-1.4.jar need?
ic2radiation-1.4.jar. Change the file and its required mods may change too.
Install Industrial Craft first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add IC2 Radiation without breaking your instance.
Built for IC2 Radiation ic2radiation-1.4.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use ic2radiation-1.4.jar. It targets 1.12.2 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Industrial Craft first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside ic2radiation-1.4.jar. It opens that exact file at the source.
About this project
What does IC2 Radiation add?
☢️ IC2 Radiation
IC2 Radiation is a lightweight addon for IndustrialCraft 2 that makes nuclear reactor accidents much more dangerous by introducing persistent environmental radiation.
Instead of a reactor explosion being just a one-time disaster, the affected area remains radioactive long after the explosion.
💥 Radiation Zones
When an IC2 Nuclear Reactor explodes, IC2 Radiation creates a radioactive zone at the explosion site.
The size and strength of the zone depend on the explosion strength:
Radius = Explosion Strength × 6
Radiation is strongest near the center of the accident and gradually decreases with distance.
☢️ Multiple Radiation Zones
Multiple radioactive zones can exist in the same world.
If zones overlap, their radiation stacks together, creating much more dangerous areas.
This makes large reactor accidents and multiple nearby explosions especially hazardous.
⏳ Radiation Decay
Radiation slowly decays over time.
The zone's strength decreases by approximately 1% every 1200 ticks, causing the affected area to gradually become smaller and safer.
Eventually, weak radiation zones can disappear completely.
👤 Player Radiation Dose
Players have their own Accumulated Dose, which represents the total amount of radiation they have received.
Staying inside a radioactive area increases the player's dose depending on the current radiation level and exposure time.
After leaving the contaminated area, the accumulated dose slowly decreases.
🤢 Radiation Effects
Higher radiation doses cause increasingly severe effects:
100 mSv – Weakness I
300 mSv – Slowness I + Weakness I
600 mSv – Weakness II + Slowness I + damage
1000 mSv – Slowness II + Weakness II + increased damage
1500 mSv – Slowness II + Weakness II + Nausea + severe damage
Surviving the reactor explosion does not necessarily mean you're safe. Staying in the contaminated area can eventually become fatal.
📟 Dosimeter
IC2 Radiation adds a custom Dosimeter that allows players to monitor radiation levels.
It displays:
Dose Rate (mSv/h) – current radiation intensity
Accumulated Dose (mSv) – total radiation received
Radiation Level – SAFE / CAUTION / ELEVATED / DANGEROUS / SEVERE / EXTREME
The Dosimeter has its own texture and crafting recipe. (Use JEI)
🔧 Requirements
Minecraft 1.12.2
Minecraft Forge 14.23.5.2864
IndustrialCraft 2 2.8.170-ex112
IC2 Radiation does not replace or modify the core IC2 nuclear reactor system. It works as an addon that adds long-term radiation and consequences to reactor accidents.
Project description from CurseForge.
Pick your setup
IC2 Radiation by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.12.2
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
IC2 Radiation versions and loaders
ic2radiation-1.4.jar
10 Sept 2026
ic2radiation-1.3.jar
9 Sept 2026
ic2radiation-1.2.jar
8 Sept 2026
ic2radiation-1.1.jar
7 Sept 2026
ic2radiation-1.0.jar
6 Sept 2026
Looking for an older file? The official CurseForge project page is in Resources.