CurseForge · Minecraft mod
MekaFissionAlterer
Allows datapack modifications to the fission reactor for Mekanism
Quick answer
Which MekaFissionAlterer release should I use?
MekaFissionAlterer fissionrecipe-3.0.13-1.20.1.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is MekaFissionAlterer 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 MekaFissionAlterer fissionrecipe-3.0.13-1.20.1.jar need?
fissionrecipe-3.0.13-1.20.1.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add MekaFissionAlterer without breaking your instance.
Built for MekaFissionAlterer fissionrecipe-3.0.13-1.20.1.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use fissionrecipe-3.0.13-1.20.1.jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 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 fissionrecipe-3.0.13-1.20.1.jar. It opens that exact file at the source.
About this project
What does MekaFissionAlterer add?
Thanks to NorthWestWind for original mod
this mod will allow datapack changes to the fission reactor coolant and processing parts.
example of datapack:
{
"type": "mekanism:fluid_coolant",
"input": {
"fluid": "kubejs:beanonium_fluid",
"amount": 1
},
"output": {
"gas": "kubejs:nitromethane",
"amount": 50
},
"thermalEnthalpy": 20,
"conductivity": 10,
"efficiency": 2
}
file structure: zip with mcmeta->data->namespace->recipes->coolant
{
"type": "mekanism:fission",
"input": {
"fluid": "kubejs:beanonium_fluid",
"amount": 1
},
"fuel": {
"gas": "mekanism:fissile_fuel",
"amount": 1
},
"output": {
"gas": "mekanism:nuclear_waste",
"amount": 50
},
"heat": 1
}
file structure:
zip with mcmeta->data->namespace->recipes->processing
Project description from CurseForge.
Pick your setup
MekaFissionAlterer by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
MekaFissionAlterer versions and loaders
fissionrecipe-3.0.13-1.20.1.jar
12 Jun 2026
Looking for an older file? The official CurseForge project page is in Resources.