I don't know how it compares to the depth of Dwarf Fortress at the moment, but there is Towns: http://townsgame.com/ I've been watching a Let's Play of it

I don't know how it compares to the depth of Dwarf Fortress at the moment, but there is Towns: http://townsgame.com/ I've been watching a Let's Play of it on YouTube recently: http://www.youtube.com/playlist?list=PL13C2217355664856&feature=plcp