I've been terrible about updating this thing!
Over the past week, I've fixed the bugs in my A* pathing, an initial implementation of thirst, and being able to build all manner of things. Including ladders, so the poor buggers can climb around; they can also build beds, anvils, and such. There's a GUI system in there too now, and that took a while to implement, but at least you can see what you're doing.
Tonight I also added a day/night cycle. Because monsters come out at night...