It simulates the universe based on classical mechanics, with the law of universal gravitation created in 1687.
Left click - controls the position of objects;
Mouse Scroll - zoom in and out;
Right click - creates new planets at the mouse position;
"b" - creates a black hole at the mouse position (the mass increases gradually);
Shift - shows the position of the center of mass;
link: https://erickcestari.github.io/Solar-System-with-Law-of-Universal-Gravitation/