The human civilization developed to an extremely technologically advanced stage, producing towers that soared into space and the Mechanical Goddesses.
Through the events that triggered the War of the Three Gods, Iasu Suterina and Nei Suterina merged to form a new world named Dir Lifyna. The Ancient Gods and the Mechanical Goddesses were defeated, and the human technological civilization was in ruins. The humans who survived into the new world retained practically no knowledge of their ancestors' legacy.
Many of the Ancient Gods bear resemblance to actual gods in real world mythologies. A number of ancient technology reference also appear similar to real world technology.