https://store.steampowered.com/app/6557 ... Sightseer/
This is a two-year-old Rust clone. It's noteworthy because you generate an entire spherical planet at the start, plus much of the building and exploration happens in zoomed-out third-person a la city-builders. There's some PVP, though I suspect the server pop will be small. Aesthetics are generic, especially the building models, but the environments seem nice.
Really the only reason I am posting this is the spherical planets.
If only Rust had them. Atlas has it, but you don't see it as a sphere. It works as a sphere, but you can't zoom out as in PA. It makes sense considering you are pirates and it's not sci-fi.
This is the best pic of Project 5 I've come across, showcasing lighting and weather effects:
The rest are too uninspiring to bother posting here. Go on Steam and check them out if you're interested.