The Brotherhood Kingdom

The Orokin were a civilization that ruled over the solar system in the past. They built technological masterpieces that rival present-day technology. During a war with what became known as the "Sentients", the Orokin created the Technocyte Virus as a way to combat them. Very little information remains on what their goals may have been. Although the Orokin are assumed to be gone, their technology remains, including advanced AI that capture intruders that enter their towers, turning them into slaves for the defense of the tower through mind-controlling headpieces. They are simply referred to as the Corrupted.