Brain Boyz is a name used by the Orks to refer to their ancient creators, who may be the long-lost starspanning alien species known as the Old Ones. The Old Ones created a warrior race known as the Krork, from which the modern Orks may derive. It is believed that the Brain Boyz engineered the Orks to be their warrior caste alongside the ancestors of the Eldar, using them as essentially humanoid biological weapons to protect them against various other ancient races. In the Old Ones' case, the Krork were created as part of a desperate ploy to defeat their ancient enemies, the Necrons and their C'tan masters, during the galaxy-spanning conflict known in Eldar Mythology as the War in Heaven over 60 million standard years ago. The Brain Boyz are believed to have encoded various forms of technol