Other than the n-body feature of the GAME, it is entirely fictional with no bearing on reality whatsoever. Universe Sandbox 2 is about as realistic as a animated cartoon is to the real-world. However, the Legacy version does not include all the fictional crap they included in Universe Sandbox (formerly version 2). When it comes to Newtonian N-Body mechanics both versions do it very well, and worth the money on just that basis alone. Everything else is pure fiction and not even remotely based upon science. The only thing that resembles reality in Universe Sandbox is the Newtonian N-Body mechanics. The name change didnt take away anything ! I truly hope you are not using this game as a teaching tool. The first time it was just inside our current Earth orbit line, they happily passed eachother and did not collide, year after year, but things in the outer system got all funky after about 100 years.!!! No matter where I put it now, I cant seem to repeat it. I slapped two earths into one orbit, opposite each other in relation to sun, they lasted 400 years before Ceres decided to head for our moon !!!!!!!!

This program has taught my kids so much, when they visualise the solar system now they actually comprehend whats going on, and TV alone could not really achieve this, with this program you can change your view, that give the kids a really good sense of whats where and doing what, this program, Ive said before, should be a part of every schools education program in the entire country, and maybe even every country of the western world. Then go run that simulation, hehe, fascinating. Think of it like a merging Star, wham bam holey crap man ! Originally posted by piddlefoot:hahaha, dont you love it when a plan comes together !

Universe sandbox 1 vs 2