Erebus Universe

The Erebus Era was the era after the Reconstruction Era, which in turn was after the Human-Covenant War. The era was marked with humanity rising to prominence in the Milky Way, although it also marked the return of the Covenant Loyalists. In the middle of the new Covenant conflict, a new foe emerged; The Erebus, a Precursor splinter faction of rogue AIs and mechanical constructs. Despite being little more than a vanguard force, it posed dire problems for the United Human Government and their allies due to the advanced technology The Erebus used.

Trivia

 * In greek mythology, Erebus was the son of the primordial god Khaos, and was the personification of darkness and shadow.