After hundreds of hours, a bricked computer and 2 gamer tags later... I just found Rockopolis and yes, Argyle. I didn't expect him to be dead nor did I expect the size of Rockopolis to be what it is. I'm sure I've been around that part of the map dozens of times but I would have never found it without that random light shining from the top of the entrance. It was night time, after all. This puts me at presumably, 90% completion. Or somethin'.

You've got hours and hours logged into this game. So, what was your latest discovery?