Way back in 2015 I made this game Lunee which I never released at the time.
It's far from finished, but I was quite proud of certain aspects of it. The simulated gravity/physics especially.
This is buggy and incomplete, but the library LibGDX allows online release, so I figured why not. If I get around to it, I'll fix up the graphics (I really dislike the color scheme) and iron out the creases. Head to the games section to check it out.