Oolite [1] is implemented in Objective-C and scripted in Javascript. The "strict mode" base game has the look'n'feel of the original - there's even an option for wireframe display somewhere - but its vast ecosystem of mods (500+ last time I played, some years ago) is much more interesting.

I don't play it anymore because I'm more interested in building games and game building now (with Luanti [2]), but it is IMO one of the top FOSS titles.

[1] https://oolite.space/ [2] https://www.luanti.org/