Surprise! There are 5 new planets in the expansion. The first planet you arrive on is a strange new land, rich with iron, copper, coal, stone, oil, and uranium. Everything a starting factory needs and more. There's also water, fish, grass and trees. Yes, this is a fertile land, and we will thrive. ...
Factorio's FFF blog posts have always been amazing.
From deep dives into development, their automated testing systems, terrain generation, and hyper-fixation (in a good way) on optimisation and QoL, through to more meme-ish and lighthearted things.
Im sure there is a great story of an indie developer making the best/funnest production optimisation games out there, all in the FFF blog.
Im so glad they are writing them again, even tho im not playing it at the moment