Precursor

Precursor is a term used to describe an ancient and powerful spacefaring civilization thought to have spanned the galaxy. At least two factions of Precursor existed, the Arnor and the Dread Lords.

Few races had any dealings with the Precursors, instead finding evidence of them through ruins on worlds they formerly inhabited and in artifacts, relics and derelict starships scattered throughout the galaxy. The remnants of their powerful technology continued to play a major role in galactic affairs long after their departure and was widely sought for by the younger races.