Institute sublevel 21-D

The  is a location in Fallout 4.

Background
This small underground area is the nucleus of the Institute's expansion even further underground. Gen3 synths labor, overseen by Gen2 guards.

Layout
A small area, with an Institute storage room and the expansion caverns, where synths work on expanding it ever further underground with restored megaloaders.

Inhabitants

 * G9-81

Appearances
appears only in Fallout 4.