Just an explanation for Ordarium, New Hera, and Project: EXILIUM explaining how they survived from the X9.com RP forum's era.

The Incident

New Hera was an ancient city during 22XX. It was the first and only city to use a fuel source known as "Ordarium". Ordarium was able to regenerate itself while acting as a fuel to hide it's true nature of a Parasitic Replibrain while it's job was to gather data. New Hera was overrun by Reploids who all used Ordarium who were doomed to be under the control of the controller of Ordarium while the rest of the city all underwent propaganda to turn humans over. The sole engineer of this: Sigma. Sigma's latest plan was corruption of humans to see if they would support the new world; evolution. After a series of events, the city was destroyed while Project: EXILIUM, a space station, was launched into space before the initial explosion. After the Maverick Hunter's foiled Sigma's latest plans by destroying Project: EXILIUM and clearing New Hera's ruins of survivors and Mavericks, Project: EXILIUM's remains fell into the ocean, completely isolated from the rest of the world deep in the Pacific Ocean near Giga City and New Hera was put under watch for observation just in case Ordarium lived on.

Eventually...

When the Elf Wars started, Project: EXILIUM still went unnoticed as no activity was seen and nobody knew the actual position of Project: EXILIUM's Ordarium core... And New Hera merely went undetected because no activity went on in there while the actual city itself got it's fair share of destruction during the initial wars. After the Elf Wars ended, New Hera was just another ruin to Neo Arcadia. After the fall of Neo Arcadia and the advent of Ragnarok, New Hera was gone. Mysteriously, the ruins were vanished. In reality, Ordarium survived, slowly regenerating itself deep under the city's ruins and said Ordarium had to protect itself. After acquiring Cyber Elves during the Elf Wars, it merged with the body of energy to create a newer Ordarium under the control of a certain individual. This individual was UNKNOWN, but it wanted to protect the city it was in, New Hera... Ordarium had also survived in Project: EXILIUM, being isolated in the Pacific Ocean. Project: EXILIUM's Ordarium merged with Kazuo Kenji nobuyuki. Similar to how Sigma merged with the virus, Kazuo merged with Ordarium, except it was more of a subconscious thing that Kazuo could not control, it also allowed Ordarium some form of awareness similar to the Model W's scattered through the world of ZX.

Now...

Taiyoh is furiously looking for New Hera after the Reploid Chiba Masato disclosed that information to them in exchange for supplies, technology, upgrades, and so forth. Chiba never gave them the direct location, only that it was near Area K.