Is there any way to RP a star lifter mining materials from a star
You could SM a small asteroid with an orbital radius of 0 or 1 depending what the game allows, and send orbital minera to it. Maybe SM the mineral levels to whatever feels appropriate.
I could do that but how would I build it up like simulating building the megastructure
It’s just planting auto mines or orbital mines
Maybe I can create a giant orbital mining station that acts as starharvester?
You could build space ports and haul them to that asteroid - they are big and expensive and could thus simulate the growing megastructure. Combine them with orbital mining stations to simulate the cost and ‘tonnage’ of such a project. It will require quite a bit of imagination to make it work.
Nothing except for economics stops you from making a billion-ton orbital mining platform and calling it a star harvester.
I mean, the economics thing is a pretty big roadblock, but still.