The first and main planet of the Universe Project will be the size of our earth as it appears in real life. It will start out completely bare of any man-made infrastructure, however plants and some animal types will exist. The players themselves will need to create inventions and buildings.
The world will try to simulate real life Earth as much as possible, the only difference are that landforms will not be in the same place or form, so you could not visit your hometowns location in the game. The world will have weather like our planet does as well, with realistic simulations of tornadoes, hurricanes, thunder, lightning and many others.