Brood Void Neuron子虫の空虚の神経細胞

A glowing cell that phases through itself, twisted and pulled as if tethered to an unseen presence. Born of Nimruza's parasite, fused with Core-linked tissue, it carries a warped signal that may unseal what even the Core Network could not contain.
In-game description

What is Brood Void Neuron? Features and uses

Brood Void Neuron is an epic item in Core Keeper (Materials).

Brood Void Neuron key points (from the game data)

Sells to merchants for 16 Ancient Coins.

Calculated and summarized by this site from the game data (1.3.0.6).

Brood Void Neuron notes

It is used to open the Breaker's Reach Gate.
Insert it into the door at the excavation site entrance to activate the door.
Once inserted, it cannot be taken back out.

These notes cover behavior that the game files do not show directly. They are based on facts from the Core Keeper Wiki (Fandom) page "Brood Void Neuron" (CC BY-SA 3.0), rewritten in this site's own words.

How to get Brood Void Neuron

Defeating Nimruza, Queen of the Burrowed Sands always drops it (1)

Scene containers, dungeon placements, guaranteed drops and natural spawns are based on the Obtaining data of the Core Keeper Wiki (Fandom) (CC BY-SA 3.0), because these are not in the game files this site reads. Scene names are the wiki's English names.