Legacy of the Ancients delves into the secrets of the Antediluvian Civilization that predated modern humans on Earth. Explore ancient ruins for precursor knowledge, and use it to unlock a whole new line of Phoenix Point weapons and technologies. But beware: the Ancients left powerful guardians to watch over their secrets; you won't be the only one seeking to control this ancient knowledge. New rivals will rise up as the legacy of the ancients is revealed to humanity.