- Dark Eldar Headquarters Building.
- Produces: Tortured Slaves, Mandrakes, and the Haemonculus.
- Contains Planetary Raid and Planetary Strike researches that unlock new units and technologies.
- Projects a Control Area around itself, allowing other Buildings to be built near it.
- Escalates the engagement to the Planetary Strike state.
- Planetary Strike allows for the production of more advanced Buildings, units, and Vehicles.