Amarenzu is one of the arrivals from the 'Dispersion Event' that took place at the City of Pirogin. So far, she is the only lucid one that has been found.
The Dweller. Prophet. Statistician. Sometimes madman. It is unclear, even to himself, whether he is seeing the future or calculating probabilities better than the fastest computer in existence. Needless to say, The Dweller knows things, often before they happen.
I thought it was the previous inhabitants of the planet who did a mass-upload in the aim of some form of ascension. Darius was one of the ones who chose not to participate (mostly by running the hell away). From the sound of things he had the right idea…
Perhaps the makers of the towers? Or the dwellers of the tunnels, past?