It is a completely new and habitable planet, not on Earth or anywhere else in our solar system. There no fantasy, sci-fi or aliens; only a modem era type human civilization, who think they occurred spontaneously, but are in fact are the spawn of long forgotten settlers from Earth.
As the years had gone by things changed. Since the first colonies were settled (in 2300AD), expanded and then abandoned, crews spread out across the landmass of the planet. There were good times and bad times for the 2500 years that saw the colonies become nations and then they had a horrific and egocentric ten-year oil war which sent them in to a new dark age. The game starts in a rebuilt world 1000 years after the war had ended.
The current date is 5800AD and the nations on the map have been here for 600 to 700 years, but no one is sure exactly how long.
The population now stands at 7.5 billion, and the nations have now grown so apart in culture and politics that have divided themselves into new sets of "nations", "states" and "countries", like back on their home-world (Earth). About 50% of the planet is still unclaimed.
all knew of each other for at least the last 300 years and all nations have radio and telephone communications with each other, unless a dictator has chosen to block it from entering his nation.
Satellites analogues to Telstar, Arabsat-1A and TIROS-1 do orbit the planet and Marisat F1 orbit the planet. They are mostly under international control.
The planet already had simple and harmless life-forms like Phytoplankton, Algae, Archaea and Bacteria, all of which lived through the terra-forming and now flourish, along side the many species imported from earth.
The brown trout (Salmo trutta), Alaska pollock or walleye pollock (Gadus chalcogrammus,formerly Theragra chalcogramma), Abies sibirica (Siberian fir) and Acer platanoides (Norway maple), the dromedary (Camelus dromedarius); Koklass pheasant, (P. macrolopha) and the common broom (Cytisus scopar\Sarothamnus scoparius) were all part of a mass shipment of earth flaura and fauna to help feed the first settlers by the terraformers that came before them.
The tech level is at 1988 levels. Could you create a better nation with better people, better lifestyle, living in a higher civilization?