Sol is a game about Exploration, Mining, combat, Diplomacy, etc, etc...
The year is 2032. Space mining and colonization, is more of a reality, seeing as the growth of technology.

This is our solar system. Well, only part of it. As you can see, We have the Moon, Venus, Mercury, The Sun, and of course, Earth.

You are the first space corporation. Recently, you have bought the ISS. It has taken a chunk out of your money, as you only have 25$B dollars left. What I mean by 25$B= 25 billion dollars.
We need a steady source of income. The Earth provides some money, but not a lot. We should quickly set up a mining operation on the moon, if we are to maintain our moolas. Sending a space craft will take 5$B in total.
To get to each world= 1 billion more dollars.
example, to get to Venus, you must have 6$B. However, to get to the Moon it will only take 5$B
Different ships cost different amounts of money.
OR
We could start making money by sending solar satellites. These will generate solar energy. this will cost less, but in return give less money.
This will cost 3$B.
OR
Post your own way to start making money.
Start.