This mod adds a new combat block to your game called the Reactor. It's not activated by default, but if you activate it with a special golden key, it will turn on!
It will attack nearby creatures within its radius, prioritizing aggressive creatures and those closest to it. However, it has a 15-second cooldown after 12 seconds of use and requires fuel (coal or lava).
It can also be upgraded with diamonds to level 2, and then to levels 3 and 4 with improved stats. The block does NOT attack tamed animals or peasants. The mod also includes two achievements.
The block can attack through walls, at level 1 it deals 3 damage, and if several blocks attack a target at the same time, the damage will be greater.
Note:
To upgrade to level 2, you need: 1 diamond.
To upgrade to level 3, you need: 1 diamond block.
To upgrade to level 4, you need: 1 netherite ingot.
If you have any questions, write to me on Telegram here: @kkomen5f
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- 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.
- Ships as warring_reactor-1.0.1-forge-1.20.1.jar — drop this file into the mods folder
- Download size: 250 KB
- Download link checked 21 Aug 2026 — working
These come from our own check of the pack file, not from the source page.