Though still in early access, I kind of adore Catacomb Kids, and I'm even more of a fan after I looked up one of the GDC talks [1] of the creator he mentioned i

Though still in early access, I kind of adore Catacomb Kids, and I'm even more of a fan after I looked up one of the GDC talks [1] of the creator he mentioned in his blog [2]. [1] http://www.gdcvault.com/play/1021877/Constructing-the-Catacombs-Procedural-Architecture http://www.gdcvault.com/play/1021877/Constructing-the-Cataco... [2] http://catakids.tumblr.com/ http://catakids.tumblr.com/ I'm not affiliated, and I'm not saying there aren't others that may be worth your money more, but I am absolutely convinced that he has the heart and mind in the right place when doing this, and it really shows. I'm hopeful to see where it will go and what he'll come up with after it's finished.