100th Millennium Wiki


Tythia is a habitable terran world administered by the Palioxis Starfield's United Terran Federation. Tythia is considered a 'core world' of Humankind of the Starfield, as it was one of the first planets to be colonized after the establishment of the Federation. Tythia is a tremendously biodiverse planet, notably in its aerial biosphere. Tythia has earned the moniker 'The Avian Planet' due to its abundance of over a hundred thousand species of birds as well as other airborne critters.

As one of the several resort worlds inside the Anthrovian Cosmos region, Tythia is encompassed in a wide assortment of population centers and spaceports. Tythia features a total of fifty-four large scale commercial spaceports, each named after one of the world's first fifty-four pioneers. Most of the population centers on Tythia are what are known as 'green cities', which are urban centers which have been integrated with the nature in some way. On Tythia, it signifies that

Moon System

The Leviathan, an automatic and mobile lunar resouce extraction platform situated on Zyria

Tythia is orbited by two moons, Zyria and Tharia. Zyria orbits Tythia in a 2:1 resonance with Tharia. Both of these moons are insignificant rocky bodies with no atmosphere. They're frequently excavated, and the resources are shipped straight to Tythia for construction. Several manually operated mining stations once thrived on the moons, but they have since been abandoned in favor of automatic mining equipment that can be controlled remotely from Tythia's surface, should the need arise.

According to careful analysis, these moons were once part of a greater satellite known as Zytharia. It was shattered by a large impact, and the debris recoalesced into the two moons that orbit Tythia today. Zytharia used to orbit a far-off gas giant in the same system as Tythia, however it was knocked out of its orbit by something, probably an asteroid impact, until it managed to reach Tythia.


In comparison to other lush worlds of its type, Tythia has a somewhat monotonous climate. Tythia never experiences more than two seasons per year owing to its low axial tilt, given the fact that other areas have no seasons at all. Tythia's average temperature is 5°C, though it may go as frigid as -10°C at the poles and as warm as 15°C at the equator.

Tythia produces very little rainfall, with the most precipitation occurring in a forest near the poles, in which the rainfall rate is around 200 millimeters. However. the average annual rainfall on the planet is fifty millimeters. This low rainfall rate is one of the prime reasons for the relatively low biodiversity of flora on it's surface.

Urban Centers

Tens of prospering and technically sophisticated population centers are strewn throughout Tythia's landscape. Since Tythia's earliest colonization endeavors, these urban centers have become the country's primary source of revenue. Tythia's urban areas occupy five percent of the planet's surface, surpassing several other similarly inhabited worlds. Tythia's surface is expected to have seven percent of its surface covered in metropolitian zones in the following millennia.

Tourism is one of Tythia's key industries, and as a result, its urban areas have significantly more entertainment centers and resorts than the typical urban center. Tythia also has a disproportionately large number of large commercial spaceports. These spaceports serve as the primary mode of public transit across Tythia and other United Terran Federation's worlds.

Ziravia City

The center of Ziravia City, covered in a high amount of skyscrapers

Ziravia City is Tythia's second largest city, spanning nearly a full percent of the planet's surface. Ziravia City is the planet's capital, and therefore, it attracts the most tourists. It welcomes ten billion tourists per year on average. To accommodate these visitors, the downtown districts of Ziravia City are dotted with exquisite and elegant skyscrapers that serve as hotels. Many of them also include a variety of entertainment facilities, including casinos, bars, and interactive museums. In its jurisdiction, Ziravia city boasts ten spaceports, each of which are capable of accommodating thousands of commercial passenger vessels. Many of these spacecraft use the Dimensional Wormhole Network to traverse across Federation territory more quickly than they could with conventional superluminal propulsion. Many areas of Ziravia City are dedicated solely to preserving the countless alien relics unearthed on Tythia. Many of them are on display in vast interactive museums open to the public, although a few are housed in carefully secured confinement facilities.

A Luxury-Class Liner situated in the Axola Spaceport of Ziravia City

Since Ziravia City encompasses over five million square kilometers of Tythia's territory, its population is estimated to be in the tens of millions. Enormous supersonic railway systems were built to navigate this vast cityscape. These can travel from one side of the city to the other in about ten minutes, which is far faster than any other means of transportation. These railway networks are open to the general public and are funded by the United Terran Federation's government.

Aerial cars can also be rented for a modest cost from designated locations. These cars are available in a range of distinct designs, the most common of which resemble a sedan and have a top speed of a thousand kilometers per hour. These are operated by artificial intelligence, although they can also be operated manually. There are two types of skylanes: high-speed and low-speed skylanes. Low-speed skylanes are usually found near the street level, with a speed limit of 100 kilometers per hour. High-speed skylanes are usually found above the buildings and have few speed restrictions.

Zarvonia City

The metropolitan cityscape of Downtown Zarvonia

Zarvonia City is Tythia's largest city, covering an area of approximately ten million square kilometers, or two percent of the planet's surface. Its populace is as vast, numbering in the hundreds of millions. Zarvonia City had a population of fifty million registered inhabitants in the previous decade, considerably outnumbering the other cities. Zarvonia City is Tythia's second-most-visited city, according to data. The average yearly tourist count for the last decade was nine billion citizens, nearly equaling Ziravia City's population. Zarvonia City is made up of two distinct boroughs: Dowtown Zarvonia and Outer Zarvonia.

The Cooper Spaceport in Downtown Zarvonia

Downtown Zarvonia is mostly composed of numerous towering skyscrapers and serves as the city's financial powerhouse. Downtown Zarvonia is best regarded as one of the United Terran Federation's more lively cities. Downtown Zarvonia has an extraordinarily vast concentration of business and leisure establishments, significantly more than almost any other city on Tythia. Downtown Zarvonia is a small area of Zarvonia City, accounting for less than a fifth of the total area. Outer Zarvonia surrounds Downtown Zarvonia, and is made up of numerous larger but less picturesque urban districts. Outer Zarvonia is characterized by smaller residential complexes, stores, businesses, and entertainment centers, with very few skyscrapers or large structures.

Zarvonia City was initially a small settlement constructed by dismantling the same-named colony ship that arrived on the planet several thousand years ago. Zarvonia City began with only a dozen buildings dedicated to scientific study and a population of about a hundred researchers and survival professionals. The United Terran Federation began developing it soon after, recognizing the surrounding area's ability to hold a large city. Zarvonia City has been sculpted into the wonderful metropolis it is in the present day over many millennia.

Zarvonia City's huge size has necessitated the development of hypersonic train lines. These systems, like those in Zirvania City, are open to the public and are funded by the government. Even at their incredible speeds, traveling from one side of the city to the other would take approximately half an hour. While it is slow, it outperforms other modes of transportation in the city. There are thousands of different supersonic railway systems, each with a variety of destinations. Some merely travel a short distance, while others transport passengers from one side of the city to the other.

An average car on the roads of Zarvonia City

Zarvonia City is one of the few areas on the planet where land-based cars are still used for general transit. These can be purchased at specialized dealerships or rented for a nominal cost for a brief amount of time. On the ground, an unending system of roads has been constructed, connecting every building. These roads are divided into three categories: low roads, mid roads, and high roads, each with a different speed limit. Low roads, which often intersect crowded places of Zarvonia City, have a fifty-kilometer-per-hour speed restriction. This speed restriction is doubled on mid roads, which often intersect Zarvonia City's less beautiful outskirts. High roads, which often connect the more isolated sections of Zarvonia City, have a speed restriction of two hundred kilometers per hour. Such cars aren't as widespread because they're far outmatched by supersonic train networks. Many individuals, however, prefer the feel of the open road and frequently convert their car to manual control.

Chiramagi City

An outer area of Chiramagi City

Chiramagi City has long been Tythia's economic powerhouse. Several world-wide corporations have emerged in Chiramagi City, devoted to manufacturing countless things for all of Tythia's other urban centers. Viphan Agricultural Productions is the largest of them all, producing 60% of the planet's foodstock. Chiramagi is known as the 'Core of Industry' by its inhabitants.

The Industrial Chiramagi, a borough that encompasses over ninety percent of Chiramagi City, is the largest region of the city. Industrial Chiramagi is less concerned with the comfort of its residents than other communities, and is instead centered on heavy manufacturing. As a result, the majority of it is riddled with various factories and industrial facilities belonging to over seventy different corporations. Only a few buildings are employed to house the city's population of millions of employees, though majority of them arrive to work via a network of hypersonic trains that connect each major city to Chiramagi City. Industrial Chiramagi's bad living conditions are a result of this.

Transportation in Industrial Chiramagi for the general public is only possible via supersonic railway systems, as no terrestrial or airborne vehicles of any kind can equal even a fourth of the efficiency of the railway systems. The general populace of Tythia considers Industrial Chiramagi to be a fantastic spot for street racing and other activities because it has no specific speed limits. Industrial Chiramagi is regarded as one of Tythia's most anarchic and harsh communities. Many criminal acts go unnoticed, even the most heinous of them, including murder. As a result of its lawlessness, Industrial Chiramagi has spawned plenty of criminal groups, many of which lure workers to join the criminal underworld in exchange for a greater wage. Others use more illegal and unorthodox methods of recruitment, such as deploying neurotechnology or brain-controlling drugs to influence workers.

The entrance to Metropolitian Chiramagi

The second borough of Chiramagi City, named Metropolitian Chiramagi, is a relatively tiny spherical region in the outskirts of Chiramagi City. As the 'Downtown of Chiramagi', it contains a far higher quality of life compard to Industrial Chiramagi, including a far higher population, coming in at five million inhabitants.

Metropolitian Chiramagi is approximately fifty kilometers wide at most, making it one of the smaller urbanized areas of Tythia. The bulk of Metropolitian Chiramagi consists of districts upon disctricts of skyscrapers and taller buildings. Many of them are leisure and business centers, while a nearly equal number is dedicated to housing of civilians. Heavily connected to the neighboring cities, Metropolitian Chiramagi has hundreds of supersonic railway systems dedicated for transport to nearby urban centers and back.

Metropolitian Chiramagi is one of the more rapidly expanding urban centers on the continent, having grown more than five times it's size in less than a century. Hundreds of different buildings are almost always being constructed by construction drones and Human laborers. During the upcoming millennia, Metropolitian Chiramagi is estimated to be the vastest urban center on Tythia, far exceeding even Zarvonia City.


Technify Solutions

Viphan Agricultural Productions


Colonization Efforts

Tythian Civil War

The Ether War