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List of Colonies
Faction Sol Central Government
System Alpha Centuri
Population 3,000,000,000
Coordinates (LY) 0X, 0Y

Tiamat, a planet within Alpha Centuri, is essentially the Bread and Water basket of the SCG. A huge ocean world, Tiamat primarily exports huge quantities of food and water to colonies all over SCG space.


Tiamats' existence was first theorised in the late 21st century as technological progress revealed the various extrasolar planets of Alpha Centauri. Amongst those were several "possibly habitable" worlds. No data was truly conclusive, which lead to the stagnation of colonisation programs pertaining this system. The idea of colonies in this system was quickly discarded as unfeasible and unable to be done.

The apparent, but slow, success of the various colonies of Mars however sparked the interest of corporations seeking to exploit bodies and resources outside of the sol system . Thus an expedition, funded by various corporations and a few governments, was sent to Alpha Centauri with the goal of charting the system.

Tiamat (or at the time called Alpha Centauri D) was quickly of interest to expeditionaries as a result of the presence of primitive flora and fauna. The rich and diversified underwater plant and animal life sparked the interest of biologists and botanists, which led to the foundation of two whole new scientific disciplines, xenobiology and xenobotany (some people jokingly say that it was also the birth of xenocooking). Tiamat was home of the central research station of the time, constructed on the barren land masses and used as a central hub of information gathering and coordination, before finally recycled and disbanded as the expedition was wound down.

Bearing messages of the richness of life and the plentiful resources of the planets of Alpha Centauri the expedition returned to Sol. Unfortunately because of a number of great upheavals in the sol system the findings of the expedition were overlooked and unexploited. Again, Alpha Centauri and Tiamat were forgotten by the powers of humanity to the dismay of the investors who only accrued a net loss and some prestigious alien specimens from Alpha Centauri.

Only a century later, with the founding of the Sol Central Government, the old data of the Alpha Centauri expedition was finally put to use and plans were made to colonise and exploit the system. The very first grand construction fleet of humanity was launched to Alpha Centauri, considered a historical moment for human development.

The goal of the Gateway Administration was to construct two bluespace Gateways, a newly developed method of FTL travel, and create a stable platform from which colonisation could begin. In a rare bout of cooperation, almost all relevant corporations funded the project called "Operation Ptolemy", coupled with subsidies by the Sol Central Government and numerous crowdfunding campaigns. Operation Ptolemy was planned to take about 8 years to construct the Alpha Centauri Gateway.

Fortunately, due to excellent project management, the projected timeline held true. The fleet arrived on the edge of Alpha Centauri and the Gateway went online, the very first in the Gateway Net of humanity. Finally humanity managed to reliably leave the Sol system and establish a lasting presence on the planets of another star.

With a travel duration of two months instead of years, the system was flooded with immigrants, adventurers and smaller corporations who heavily invested in the opportunity of colonising completely new lands.

Tiamat was originally ignored during this Manifest Destiny, as the planet had no easily exploitable resources, a non-breathable surface atmosphere and little terrain to build structures on.With a population of only 1000 souls, mostly confined on the small islands working in desalination plants erected for other planets within the system and underwater sea labs.

This changed however when "SolCrops" bought out the plants and began rapidly expanding the complexes and built the first foundations of permanent settlements planetside, such as Nova Atlantis, primarily to export agricultural products and water en masse.

SolCrops initially enjoyed a successful expansion of corporate operations on Tiamat, until a small recession and poor business choices led SolCrops to go bankrupt and their holdings were soon acquired by other entities. Not so for Tiamat which, as a fledgling, successful planetoid with its own functional colonies, managed to free itself from corporate oversight and established itself as an independent colony within the SCG. After the loss of corporate control a democratic government was established and, with temporary oversight by Sol Central coming to an end, Tiamat began to enjoy stasus as an fully autonomous state within the SCG.

As of 2420, it is considered one of the core worlds of humanity.

Politics and defense

Tiamat, as a political entity, is not united under a single government, with arcologies, floating cities and offshore facilities being independent, sovereign nations. The usual composition of a state on Tiamat is a central arcology with several smaller offshore facilities and settlements under their wings. Although mostly on cordial terms and under the heavy scrutiny of Sol Central, competition is prevalent and sometimes even carried out in covert wars.

It goes without saying that Tiamat is considered one of the core worlds of humanity and enjoys a protected status in the Sol Central Government. It is one of the oldest colonies of humanity and enjoys a heavy, developed SCG presence, making piracy almost unheard of, a boon for the huge merchant fleets of the planet.

The independent city-states of Tiamat still have their own laws and armed forces, despite the heavy SolGov presence. In general, their armed forces consist of volunteer soldiers that rely on imported equipment and weaponry.


Tiamat is a fairly large planet, with a diameter of 18000 km. The gravity is just slightly higher than on Earth, but still average enough to allow for continued human life with no gravitational modifications.

Tiamat's surface is almost completely covered in salt water, with only 0.5 percent landmass above sea level during a flood. Beyond that, varying amounts of sea depth is observed, with very rich reefs and salt water lake life. The biomass is comparable to that of the Earth, although no land life, flora or fauna, is observed. The water of Tiamat is mostly composed of salt ocean water.

In it's natural state, the atmosphere is not breathable due to the relatively small amount of oxygen on it. Due to this, nearly the entire population lives in biodomes that tend to be significantly more vertical than their Martian or Lunar counterparts. With atmospherics equipment in the biodomes, any oxygen on the planet is filtered out and used for habitation.


Tiamat is rare under the core worlds because of their unusually high acceptance of xenos (or rather Skrell) in their population. Although a minority, Skrell are welcomed amongst the Tiamat's population, which influenced their way of life significantly. Philosophy, balance in thought and the exploration of the human mind are significant pursuits amongst the population, making the planet something of a bastion of science and critical thinking amongst the core worlds. Many famous human philologists and philosophers come from or live on Tiamat.

Water sports are hugely popular on the planet, with surfing being somewhat of a planetary spectacle, which is broadcasted on holovids and more. The best way to insult a Tiamatan is to insult surfing, as a saying goes! There are several violent cults (called "surfigans") obsessed with particular surfers that they even go violent amongst each other, a rather troublesome sub-culture on Tiamat.

Tiamat's cuisine is famous in the way that it is only truly enjoyable for people born on the planet. Consisting primarily of native fish and those introduced by humans or otherwise, kelp, seaweed and algae. A "national drink" exists as well, called "Ocean milk", a thick slurry of fermented algae containing alcohol. Due to its pungent and foul taste, export is almost non-existent.


For all of its history, Tiamats' economy had been primarily based on crop and processed water exports, with the salt, fossil fuel, power generation and tourism industries being fairly relevant as well.

A very large portion of the population works in the first two sectors: approximately 70% of the entire workforce. Hydroponics is extremely viable and widespread due to the extremely large water supplies the planet contains, with farming outputs being so large that sustaining a huge population is not only easy, but also fully allows for large-scale exports of said goods.

Since the water can't be used for human consumption in its natural state, it's first processed in one of the several thousand water processing plants the planet has. Billions of litres of water are processed in a day and used up locally, or exported with the huge merchant fleets the governments own.

Off-planet trade is extremely important for Tiamat. A large emphasis on trade and shipping is exists with the various Tiamat governments owning about 2500 merchant space vessels to perform trade all over human space.

One of the oldest and most important trade partners of the individual Tiamat nations is the Vorcian Federation on Mars. A solid and stable trade contact and agreements were agreed as soon as in 2368, and both entities are still benefiting hugely from this trade. Tiamat primarily exports crops, processed water and in a lesser part, fossil fuels to the Vorcian Federation: goods that are fairly less common on Mars, but in fairly high demand.

Tiamat then imports space vessels, robotic equipment, construction supplies, weaponry and general consumer goods from the Vorcian Federation on a large scale. A huge amount of Tiamat's current merchant and military fleet was fabricated in Vorcia.

Tiamat is arguably the main provider of water in SCG space. Many settlements rely on it for water supplies to some degree. Over the two centuries of it's existence, the very presence of the Tiamat settlements allowed many new colonies to properly survive and thrive. From Earth, to Mars, to Luna, to Tau Ceti and even to frontier systems like Nyx, Tiamat improves the general standard of living, at least marginally.

The planet is almost completely self-sustainable when it comes to power generation. The large ocean is used for wind turbines, solar panels and tidal power plants. Nuclear power plants also exist.

Notable settlements

Nova Atlantis

The first permanent settlement on Tiamat, it was built on a very small island in 2362 as a biodome. As time went by, the settlement would expand vertically and undergo rapid growth. It was able to formally form a sovereign government in 2392 (named the Republic of Nova Atlantis) that also included several smaller offshore facilities and settlements. With a total population of 700 million in 2582, it's definitely a match for some of the Martian mega-metropolises, at least population wise.