I wish I'd been here sooner to say something, but...as nice as the broken rails look, don't they go counter to the lore of the game? Isn't this whole planet meant to be some new place to be colonized by humans? Why would there already be signs of advanced life on a planet like this? If there were some kind of life here before humans came around, shouldn't the rails at least look different to show that "Something lived here before, something non-human"?
Just a little thing.
Regular reports on Factorio development.