Actually, forming stable orbits is just rocket science. When you have your initial, unstable orbit, you can easily make it into nice, round one if you follow a simple rule: when planet is at it's furthest orbit point, use your gravity pull tangent to that point, or in the current linear speed direction. That will slightly increase the height of lowest point, making the orbit more circular. After few dozens of adjustments, you should have stable orbit.
When you find two cities, 1 day travel apart each other, and in one of these diamonds cost ~9000 while in other they cost ~12000, that means you win the game when you have enough money for one gem.
I have made meteor sized 253. The meteor hits the planet when it's centre connects with the surface of the planet. As it seems, the only limit is how much time the person wants to waste.
P.S. Challenge: Make a meteor with size of over 500.
Because of SCGMD4, my skills really improved. Before it, I had problems while getting silver. Now? Most amateur + few pro songs perfected on first try.
I nearly conquered all the map, but when everyone turned into religious suicidal maniacs who refused to do anything, all hope was lost. now I know that religion is evil.
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