ModsJava
ooney's Nether Reactor Core
Backports the Nether Reactor Core from old MCPE versions to Alpha and Beta versions of Minecraft Java Edition.
⬇ Download on ModrinthNether Reactor Core
Welcome! This mod doesn't just backport the Nether Reactor Core to Java Edition, but for alpha 1.1.2_01 versions, the fishing rod is given its functionality :D.
This mod is also compatible with my other mod (ooneys Alpha Patches), to set it up, make sure that the ooneys Alpha Patches mod is added to the minecraft.jar before this mod.
If you are curious on what the Nether Reactor Core is, feel free to check minecraft.wiki.

Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: a1.1.2_01
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Downloads as ooney-reactor-1.2.0.zip
- Download size: 138 KB
- Download link checked 11 Sept 2026 — working
These come from our own check of the pack file, not from the source page.