[ABraidotti]

It looks like it's unfinished. At the bottom of the last existing chapter, it says "We now have the second-to-last section done!" and mentions something about building "the Abyss." I wonder if the author(s) meant to finish it but never returned from the depths...

[swsieber]

In progress might be a better way to put it.

The copyright looks old on that page but if you view the source code for that chapter it was modified last month.

[JasonCannon]

The author is pretty active on /r/roguelikedev and definitely still works on this and the original library