The game is the work of Stefano Meschiari, a postdoctoral fellow at The University of Texas at Austin in the McDonald Observatory.
You can add up to 12 different kinds of objects into your DIY solar system, ranging from stacking a universe with multiple Earths to dropping in a dwarf star. Extra points are awarded for the inclusion of more massive objects in space, though they also up the potential to destabilize the whole thing into an interstellar crash.
There’s something there about a goal of getting a solar system to last for five hundred years blah, blah, blah. We all know you’re just going to see how big an explosion you can make, so why pretend?
Maybe I am projecting, now that I think about it…