Help remembering this game

Help remembering this game this was when I was in elementary school and I have been trying to remember the name of this game for a while. A little about it was a text based game with very simple line graphics at the top of the screen it was on a black screen with white lettering I though it was something like dark castle or something like that since it involved looking around a castle but I don’t remember much more then that any help would be great thanks