IMHO, NetHack is the king of clunky, quasi-graphical-but-really-text-based games. In many ways, it is probably the greatest computer game of all time. Is Dwarf Fortress in the same league?
Edit: there is also an "adventurer" mode in DF, which is a straight-up roguelike, where you can go and, for example, explore old fortresses you built. It is fun, but last time I played, it was still very rough and most of the focus had gone into the fortress-building side of things. I know that Toady spent a lot of time building a more dynamic roguelike experience a year or so ago.