eHmmm, I thought beyond zork was the graphical zork game which was an updated version but I don't axknow.

My absolutely favourite of course is Eamon, through the Eamon delux system. I really hope more development goes into that, especially now that we have talking dosbox to help people get it running on silly modern windows.
Fallthru is pretty good, indeed it's one of my favourite games of that sort.

I did dig out a couple like braminar, the game drone was based on and some old rpg games like paul pank's westfront, but I've not had luck in many besides fallthru.

the Ner bbs prject was a really great thing and had some extremely good old rpgs like usurper and of course tradewars, indeed if your interested in tradwars style games, try out star ship traders, which is a browser remake of a dos console game, indeed two of them and is very fun to play if rather conusing to play well.

As to roguelikes, I've never had any luck making sense of the interface with a screen reader.
the only roguelike I have made a lot of inroads into is Angband and it's various versions, due to a lot of helpful features such as a very handy look curser, an ability to list onscreen objects and monsters and for me at least, the large and visible graphic tile, however I don't think angband is quite playable without looking at the large tiles to get over all positional information and ideas on walls and the environment, though it's probably worth a look.

Try kerkerkruip for a great example of a game that presents many of the same tactical decisions about a roguelike, but with an interactive fiction, or more standard text rpg interface.