I'm kind of at a loss as to what people actually do in this, rather than what you *can* do. Do you make new solar systems? smash tiny things into one another until you make a big celestial body? Challenge yourself to make habitable planets in inhospitable circumstances? Mess with orbits and watch how it changes the solar system around it? I'm curious as to what you, the person reading this, do with this simulation to have fun with it. I actually did buy it at one point, but returned it after about 40 minutes because I felt overwhelmed and didn't really understand what you could actually do with it besides smash things into one another and goof around with the mass and density of planets in the solar system. I've been interested in buying this game for years.