Servitor

Servitors are a kind of artificial intelligence construct originally created by the Ancestors. They served as the Ancestors' equivalents to Forerunner ancillas, and were likened as such by the Librarian.

History
Servitors were used by the ancient human Ancestor civilisation prior to their defeat in the Human-Forerunner wars. As the Ancestor civilisation rose to prominence, servitors aided human scientists in reverse-engineering Forerunner technology - bridging the gulf between the two civilisations. Following the wars' conclusion, the Ur-Didact was able to use a damaged servitor to gain knowledge of the workings of the timelock that contained the Primordial.

Even following the Great Purification at the end of the Forerunner-Flood war, servitors evidently were able to survive into the modern era. Following their uprising, the Created used their access to Forerunner knowledge networks to uncover the existence of The Assembly - with High Auxiliary Sloan describing the coalition as having "sprang forth in the shadow of ancient servitors as a vessel to guide aspects of humanity's development and independence".

List of appearances

 * Halo: Primordium
 * Halo: Silentium
 * Story Shard: Precipice