![]() ![]() ![]() One of Universe Sandbox 2’s greatest strengths is its dedication to making the game as accessible and as fun to play as possible. From zooming in to our very own planet Earth to zooming out to gaze across galaxies, Universe Sandbox 2 is ideal for fans of Kerbal Space Program, Space Engine, and is basically what everyone really wanted from Spore. Whether it’s reconfiguring entire solar systems or messing around with specific planets, players have an unprecedented scope of experimentation available to them. Players are given a god-like ability to alter aspects of the universe in any way they choose. The core gameplay of Universe Sandbox 2 is simple. Developed by Giant Army in 2015, this spacey sequel gives players access to the biggest game world there is: the entire universe. The developers seem interested in incorporating some GR concepts, like gravity propagating at the speed of light, spinning black holes and ways to better approximate GR.Part videogame part educational simulator, Universe Sandbox 2 was the highly anticipated sequel to the low-key hit Universe Sandbox. Still, Newtonian physics can get the job done for the most part. Accurate general relativity simulations require supercomputers. They would start with some initial data of the shape of spacetime and then see how it evolves according to the Einstein equations, which are 10 highly non-linear partial differential equations. Instead of simulating N number of bodies, they would be simulating a huge number of points. That is, taking your simulation space, discretizing it to a hi-res 3-D grid and checking the effect that each and every point in that grid has on all neighboring points at every timestep. General relativity requires simulating the spacetime itself. Newtonian physics just requires n-body mechanics, so it is much easier to implement. However, Universe Sandbox 2 uses 300-year old Newtonian physics, rather than general relativity. If you want to simulate day-long events, like planets crashing, it might be better. ![]() Means that if you want to simulate the Solar System over a long period of time, it won't be very accurate. The slower the time, the more accurate the calculations. Its accuracy degrades as you increase the flow of time. Not sure if these kinds of questions are allowed here, but I may as well answer it. ![]()
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