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Brainium

Adds floating brains that attempt to spread throughout the world

NeoForgeForge
Loaders
NeoForgeForge
Downloads on Modrinth
3.7K
Followers on Modrinth
35
versions
9
Updated
September 13, 2026Sep 13
Published
in 2025

At a glance

Runs on NeoForge and Forge
For Minecraft 1.20.1, 1.21.1
Needed in the game; optional on the server
Latest version — 6 from September 13, 2026
License MIT — free
Where it's needed
In gamerequiredOn serveroptional

Needed in the game; optional on the server

Game versions1.20.1, 1.21.1

Note: when playing with optifine this mod may cause crashes_**

Update 5:

  • New weapons
  • New items
  • A new unique tool
  • New Mobs
  • Optimizations
  • New Mechanics

Overview

Welcome to Brainium, im sure you can guess what this mod aims to achieve so let me get to the details.

the abaconing

Brainium is an infection mod, it begins with a meteor falling from the sky which in itself does not start world infection. The brainiums are parasitic brains that need hosts to spread, they will try to form a brain master and if successful your world will begin to be infected by these parasites.

cool infected world cinematic

Mod Contents


Brainium dranking mobs

These small creatures spawn randomely at night and seek out a host. They will pull in mobs into a ring where       they will slowly drain the mobs to allow itself to grow. Brain Master lighting up skelington Brain Master:

A well fed Brainium turns into this brain master, it fires lasers, destroys blocks, shoots fireballs, and more to           protect the brain infection from being stopped.

Infection


initial infection progressed infection Brainiums: The Brain infection will slowly spread once a brainium can become a brain master and begin the infection. The only way to stop and reverse it is to destroy the brain master, the infection will automatically reverse itself afterwards returning your world mostly as it was. Final stage brain master Final Stage:

If the infection spreads for long enough, the brain master will center itself in the infected landscape and begin extracting iron from your world to reach its final form and secure the infections protection.  infection zones

infection stages example

New Infection System: The brainiums can now infect any mob in minecraft and any mod, they are able to corrupt mobs with this brainium infection and at the final stage the mob will be permanently allied with the brains.

new weapon New guns: This updated new weapons have appeared and are now your new tools to fend off this ever complicating parasite.

corruption walker Corruption Walker:

A new set of armor added to help fight against the brainiums. The primary feature is its defence                      mechanism. Upon being damaged flying crystal shards will appear to then home in on your attacker and    deal  damage. gravity gun pretty much

New Brainium Pets you can upgrade**_

New Allies: After defeating a brain master, all brainiums in the area will be tamable with brain crystals, taming a brain now gives you an ally you can upgrade to help fight any future or recurring threats.

End/Plans


Currently I am planning to complete the player infection feature allowing players to be automatically controlled to move. Most importantly after finishing the brain hive mind behavior fully I plan to add actual infected mob models for many vanilla mobs to bring the mod to life a bit more. Id like to keep the mod small as it was primarily a project I wanted to do for fun and I do have some more mod ideas in mind too.

If you have any suggestions or ideas feel free to leave a comment on the mod page or join the discord if you would like to chat about the mod.

discord

FAQ

How to install Brainium?

Install NeoForge for your Minecraft version, download Brainium for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does Brainium support?

Brainium has builds for Minecraft 1.20.1, 1.21.1.

Is Brainium needed on the server?

Needed in the game; optional on the server

License and source
MIT Licensefree to use and share with credit to the author
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

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