Cyroc

Overview
The Cyroc (SY-rock) are a biomechanical species indigenous to the planet Dyrexus (dye-REX-us), known for their entirely mechanical appearance and distinctive face-concealing masks that they rarely remove in front of others, which in the case of offworld cyroc are often fashioned after the dominant species of whatever planet on which they've settled.

Believed to have been primarily biological at some point in their history, the cyroc extensively modified their bodies to survive on a home planet gradually rendered near-barren by excessive industrialization and pollution. As a result of this, many cyroc have departed via colony ships for other worlds, on which they often adopt outwardly primitive hunter-gatherer lifestyles to live in relative harmony with their natural environments.

Language
Akoran (ah-CORE-ann) is the primary language spoken by Cyroc, composed of clicks and buzzes produced by mouthparts believed to be a prosthetic approximation of the mouthparts they possessed as organic lifeforms.

Biology
Believed to have been biological at one point in their history, Cyroc are primarily bipedal and stand on average at 7'5 to 8'0 feet, though this isn't a hard rule, as their mechanical physiology is highly modifiable—far smaller individuals are sometimes seen, suited for navigating crawlspaces and maintenance tunnels.