I may as well join this... I modified my stardust app a bit, but only a bit.

App: 
Name of nation: Officially, their name is “The Deminutian Empire of the Fathomless Night” but due to the cheesiness of it, it has been conveniently forgotten. If the Deminutii must refer to their empire, they call it simply “Imperia.” That has become the common name of the star system that they inhabit, and also the name of their capital planet.

Geography of system: There are four rocky planets, in the ambiguous area between planet and dwarf planet, surrounding a white dwarf star. Each planet belongs to a different subspecies, with the fourth and smallest planet being the center of government among the people of Imperia. The planet closest to the sun is a more-or-less barren wasteland, scorching hot all the time. Water and food have to be flown in from off-planet or grown in climate-controlled greenhouses. The next planet out is more inhabitable, covered in lush forests and farms, about 25% of its surface being fresh water. Beyond that is a planet that is entirely oceanic at its surface, with all development being entirely underwater. The fourth planet is tiny but beautiful, full of dramatic cliffs, lush forests in the valleys, waterfalls that are so long they evaporate before they touch the ground. 

Species: The only sentient species in the system Imperia are the Deminutii, pronounced deh-mih-nuu-tee. The Deminutii are, as the name implies, small humanoids. Very small. There are four subspecies, each having evolved to suit one of the worlds in Imperia. They have rather short lifespans, averaging 15 earth-years, which can be rather problematic in their diplomatic installments far from Imperia.
[hider=The Terrae]The Terrae, the most common subspecies (Approximately 46% of the population) measure about 4.5 to 5.5 inches tall. The Terrae all have dark skin and dark hair, and the vast majority have eyes of shades from emerald to cocoa. They have proportionally very large feet and hands, with very long fingers and opposable toes, and a grand total of twenty-eight phalanges, seven toes on each foot and seven fingers on each hand. The Terrae are the farmworkers and hard laborers of the Deminutian people, and their planet provides all of the vegetables and fruits for the empire. In addition, some of the Terrae are specially trained and serve as medics, for both the military and for the empire as a whole.[/hider]
[hider=The Ignii] The Ignii, comprising 20% of the Deminutii, are the largest of the race, measuring between 5.25 and 6.25 inches tall. Some have been as large as seven inches. Their skin has gradually become red-tinted, as have their eyes, though some still retain very dark brown irises. Over time their people have developed resistance to heat and very high pain tolerances, to the point where some of them have actually grafted paper-thin metal onto their bodies as armor, and some children have been born with smooth metal already on their forearms, shoulders, and chests. Most of the Ignii are enlisted in the military, as police officers patrolling the system, or as metalworkers, responsible for building the Empire’s starships and other devices.[/hider]
[hider=The Aquae] The Aquae, comprising 26% of the Deminutii, are smaller than most of their brethren, between 4 and 5 inches tall. Of them all they have the greatest diversity in skin and hair color, though they all have eyes of a shade of blue, from ice to ultramarine. What makes them unique is that they have evolved gills along their necks, while still retaining their lungs, and they have webbed, very large hands and feet. The primary role of the Aquae is to fish, providing the only meat for the empire’s tables. [/hider]
[hider=The Aurae.] The Aurae are the ruling class of the Deminutii, comprising just 8% of the population. They are the smallest of all the Deminutii, measuring between 3.25 and 4 inches tall. Also, they are the least diverse. They pride themselves on their very fair skin, and their rich purple eyes. Their hair color and style is often the only thing that can be used to tell them apart; the current ruler has black hair, the one before her had silver-white hair, and the one before that had rich cinnamon-colored hair. They can always be picked out of a crowd by the magnificent wings they have. No two Aurae have ever had the same wings, which can range from clear dragonfly wings to feathered wings like a hawk’s. The Aurae serve as rulers and in diplomatic positions across many of the known systems. In addition, they are the thinkers of the Deminutii, being the ones to conceptualize many of the spacecraft and the physics behind many of their contraptions.[/hider]
The Deminutii are able to communicate mind-to-mind, but only within their subspecies. Aurae can think to other Aurae, but not to Terrae or Ignii or Aquae, and so on. This communication is mostly instantaneous, even across the solar system from each other. As a result, they still have a spoken language, comparable to Earth’s Ancient Latin. The Queens still control the hive mind of the entire species.

Description of government: The government is an absolute monarchy, to some degree at least. There is a Queen, and a royal family, and the right to rule is passed from Queen to eldest daughter. This right to rule comes with a burden, however: the Queen passes all of her memories, and the memories of all the Queens before her, onto her daughter. The Queen hears and sees and thinks whatever her subjects do. As a result, she can often not manage Imperia on her own. As a result, each planet is allowed to elect its own leader and council, who have equal authority to each other and are second only to the Queen and the advice of the royal family.

Description of military: Quite honestly, the Deminutian military is a joke to most of the other species in the universe. They’re only seven inches tall, and those are the giants! The Deminutii understand this and accept this, and so have done little to develop their own military technology. In effect the Deminutian Fleet is just a police force that stays within the boundaries of the Imperia star system and punishes Deminutian criminals. The only time they venture out is if they need to escort a diplomat somewhere, and even that is just for show.

Technological Overview: Since military technology hasn’t had very much effort devoted to it, other technology certainly has. The Deminutii have recently developed a magnetic temporal distortion that basically enables them to go into a stasis of sorts, within which they don’t age, which is useful for getting to and from their diplomatic installments across the systems. In addition, they have developed cloning machines, for exclusive use by couriers and diplomats. These machines scan the body down to the cellular level and load memories into a computer database, then replicate the body and basically “inject” the memories back into the cloned brain. Their starships remain relatively undeveloped, still taking, (relativistically speaking) nearly an eternity to get anywhere.

Cultural Overview: The Deminutian language formed similarly to Latin, probably because the first Deminutii simply chose sounds they found beautiful. Each of the planets has their own god they worship above all others: The Ignii worship Ignarys (Ig-NAH-rees), the god of strength, courage, and technical artistry. The Terrae worship Laënia (Lie-EE-nee-uh), goddess of flowers, herbs, and peaceful creatures. The Aquae worship Aenara, (Eye-NAH-ruh) the goddess of shiny things and secret hiding places. And the Aurae do not worship any one god or goddess, instead the pair: Nyeris (Nee-EHR-is) the mother and Asandr (Ah-SAHN-der) the father of all beings.

History: The first Deminutii were the Aurae, on their distant-from-the-sun planet. They had no way of marking time, indeed no knowledge of any worlds outside their own mountain kingdoms. A group of young Aurae were playing, one day, and a young girl decided she wanted to fly higher than the others. She flew higher and higher until she flew out of the atmosphere entirely. She blacked out, of course, and fainted and fell to the ground. When she opened her eyes she told the others of what she’d seen, of the worlds she’d seen far in the distance. The Aurae would stop at nothing to explore the rest of their system after this vision, and so they built their first spacecraft, powered by the sun, and set out. Several missions failed and hundreds of Aurae died, but still they kept at it, determined to find these other worlds. Finally, a mission succeeded, and they found the planet of Aqua. The colonists on that ship had no way of communicating, and so the Aurae kept launching more and more ships until by sheer chance they had found the other three worlds in the system. They quit launching ships after they had sent a hundred out, of which thirty had found the planets. Still they heard nothing, heard nothing from their colony ships, indeed had nearly forgotten about them over the course of generations, until a thousand earth-years later a ship the likes of which they could have never comprehended arrived, made of silver steel and prismatic glass. Aboard it were people much bigger than the Aurae and so very different. The people presented a document, the letter that had been sent with each colony ship, explaining that they were colonies designed to explore the boundaries of the universe.
A thousand more years passed; the Aurae found their other two colonies. The three colonies were too eager to accept the Aurae as rulers, something to do with the majesty of their wings. The colonies, though they had been self-sufficient, had to have been to have survived this long, settled into their more comfortable niches: Food from Terra, water from Aqua, protection from Ignis, intelligence from Aura. Reunited once more, the people looked to the stars.