Country

A country is a nation with its own government, a country can be a democracy, oligarchy, autocracy or a dictatorship. Creating a country is hard, managing one is even harder which is why most times the government is just a Guild which can help simplify a country.

Countries may have homes, castles, stores, markets and even an army. Becoming a citizen of a country is important unless you want to live in the wilderness.

Country System
Countries don't actually have a hardcoded system in place, it's mostly roleplay. Countries can be created but won't be recognized until it looks like one. Anyone can place objects in the game such as furniture, however, to place bigger objects such as homes takes longer to build. Homes are important because it can store the inventory of citizens.

Country War
Countries are able to start wars with other countries, the only way to end a war is a treaty or by destroying the other country. However, continuing a war for a long period of time is a loss since you'd actually lose money.