Craftworlds

A craftworld is a vast, planetoid-sized spacecraft populated by the Asuryani faction of the highly advanced humanoid species known as the Aeldari. The craftworlds travel through the void of space at sublight speeds, carrying the greater remnant of the Aeldari species after their Fall. Each craftworld is a self-sufficient, independent realm with its own distinctive culture. Every craftworld is built upon a skeleton of psychoactive, crystalline wraithbone whose structure extends throughout the gigantic voidcraft. A similar skeletal core lies at the heart of most Asuryani constructions and every one of their spacecraft. In function, this core is similar to the blood vessels and nervous system of a living creature, pumping life-giving energy around the body and also transmitting the psychic impulses that coordinate its many functions.