Most of Imperion's characters will live in, or at least spend some time in, the Dome. Even most Outlanders were Dome citizens at one point. The Dome operates almost entirely independently of the rest of Tyrrhenia, and has its own culture and society.
In winter, the weather cools off and artificially created snow is dropped occasionally. At times, this may turn into ice, but usually it's a fluffy, ski-worthy snowfall that doesn't pose any real trouble, and really occurs merely to keep to the season cycles that humans and the plant-life alike have come to expect. In higher altitude locations, it is usually several degrees colder than it is on sea level.
The Dome uses the Cap as a currency. This works most similarly to the Japanese Yen in the real world. Thus, the prices on most things in Imperion's setting sounds particularly pricey to us, but it actually isn't. In example, a bottle of soda will cost around 100 Caps. This is only about 80 cents USD. Caps are called that because of the stamping machine used to print the images on the coins. This stamp leaves the edge of the coin in a shape that vaguely resembles a bottle cap, which first caused people to call them 'bottle caps,' and then later shorten it to just 'cap.' There are bank notes, but most of the currency traded on a regular basis is coins.
Indus is known to be the only city in the Dome that is openly and officially welcoming to Outlanders. It is common for one to meet Outlander traders in Indus, but they are not entirely rare in other cities, either, barring perhaps Pyxis — the Outlanders like to pretend Pyxis and the Grid do not exist.
For instance, Eridanus and Aquila are known for their stone sculptors, whom create very well-crafted marble pieces depicting usually common Other types, or members of high society. Pyxis is more known for its vulgar graffiti, but while Pyxis' graffiti may seem crude and meaningless, it does tell an interesting story of hardship and the reality that many poor citizens face in day to day life — a subject the stone sculptors of Eridanus and Aquila would know very little about.
Eridanus, Aquila, and Orion, have very formal religious observances. These are normally marked with a public gathering, honouring most likely some Legendary or another, perhaps ancestors, and may include a banquet and some merry-making, but usually nothing too extravagant. Indus, Phoenix, and Pyxis however, are very well-known for their week-long, rowdy, loud, and often entirely disorderly festivals for almost any reason they can think of. Indus, Phoenix, and Pyxis, love to party, and they love to eat. … they also love a good excuse to blow things up — fireworks displays are very common during their festivals.
One graduates from schooling when they complete at least 10 levels in all of the given subjects. Students may then go on to attend Aquila's Erebos University, which teaches more expanded and in-depth information on the basic subjects, as well as specialised courses in other things, such as sociology, psychology, Other studies, arts, music, healthcare, childcare, and more.
Women are thought to be best suited to the home. Taking care of a household and any children in it is extremely important in the Dome, and it is thus relatively rare that a woman will attempt to pursue a career, especially one that does not deal with children in some way. However, like with homosexuals, women are much easier accepted, and better protected from prejudice, in higher rankings in the Republic, but some may still hold prejudices of some form against women, particularly if they are higher ranked than they are.
The Dome is in a pretty deep pit filled to brim with controversy over the Special Other Forces, Losrians and Others themselves, and the war with Andasca. Some believe what the Republic says, that the SOF are necessary but ought not be bothered with, and Losrians are unpredictable snakes that can turn around and destroy them at any time. Others, however, are fiercely against the Special Other Forces's methods, believing it akin to slavery, and view the war with Andasca as a genocide. Plenty of fights and arguments have broken out over this opinion divergence.
Further, there is a small, but growing, opposition to the registration system, people that believe the registration system needs to be removed outright, and replaced with a public welfare programme that will assist unfortunate citizens in getting their feet under them. This opposition is most fiercely combated by nearly everyone in the Republic, and most of the upper crust of Registered society, as they believe it would too negatively impact the Republic and its efficiency to bother.