if it possible to call them it is possible to use them in any wayThat actually could be pretty useful (as far as someone's curious about those info) so, adding such could be useful. But I have no idea how the game handles those informations, if it's possible to call for them, and have an NPC talk about them. I seen that you can use some information in dialogues like current time or whether a boss is down or not, but how most other info are handled, I don't know. @DV Game might knows?
As for looks, when you said the idea, I first had the image of some wise old scholar, I think. an old witch sounds fitting too. but it really could be several other things too that all could sound logical. We can return to the question about design, once we know whether it's possible to use info like those you mentioned, in NPCs dialogues.
and I think everything is possible, but idk about "how much have you walked". also how much have you played is useless, because it is shown already?[/QUOTE]