If the internal map is consistent and not randomly changing, that is if the player walks forward through a door and turn around the door should still be there and allow the player to exit the room, I would enjoy playing these old-school text-adventure games again.
You are in a debris room filled with stuff washed in from the surface. A low wide passage with cobbles becomes plugged with mud and debris here, but an awkward canyon leads upward and west. A note on the wall says "Magic Word XYZZY".
I think a combination would be good. Touch for directions to move, but text entry for commands like "xyzzy". Then again, maybe touch for common actions is a good idea like buttons for "Get", "Drop", and "Use".