Don’t remember how far I got, maybe 2/3 of the biomes, then I burned out and got bored. That was a while back, and flattening the land was really glitchy. I’d have an area perfectly flattened and ready to commence building, save it all down, come back next day, and it’d all gone to shit again. I got sick of trying. It became more of a grind just to get back to my last save point than I wanted, and gave up on it.