Silivia is an ancient city, its origins dating back to before The Great War. During the war, humanity was left with an apocalyptic, destroyed world, unsure of what their next goals would be. The surviving humans broke into colonies, which would later grow into cities. Due to what some considered a miracle, Silivia remained largely untouched in the demonic attacks and humans migrated to the city, deemed the capital of Euclid.
Silivia first appears in Season One. The protagonists arrive at the city in search of safety, as they come to terms with the new events unfolding before them. Unbeknownst to them, the city was the birthplace of Atticus Anoethite and Melissa Devlin. As the main city in Thales, it appears numerous times throughout the series.
The city of Silivia is split into five distinct districts.
Also known as the Commercial District, the Metro District is the largest of the five districts. It contains many businesses and utilities. It contains the police station, fire station, hospital, prison, and the governmental building. It also holds an Alchem. building. Scattered throughout the district are secret entrances to the elaborate maze of Alchem. tunnels buried underneath the city. Metro is the cleanest and most well-protected of the districts. In the middle of the district is a large coin fountain owned and operated by Alchem.
The Residential District is mainly housing. A few parks are in the district, though not well maintained.
The Ghetto District is the worst part of Silivia. It used to be a part of the Residential District until it was largely overrun by gangs. Many of its buildings are abandoned.
The Outskirts is divided into two subdivisions: East and West. The East Outskirts is inside the city walls and is slightly better than West Outskirts. It contains a junkyard and a trailer park. The West Outskirts are outside the city walls and have only a few camps set. The Outskirts is the only district to cover two city entrances.
The Amusement Park District is the smallest of the districts. It is operated and maintained by only a few people. It has a carousel, a broken Ferris wheel, a small petting zoo, and a few carnival stands.