So while terribly sick I had another idea for an NES that I'll probably not get into with much detail because my next NES will be a return to my first one (or a modification of it).
The idea behind the NES is that the players are all knights from various orders, backgrounds, etc., but all from the same kingdom. Their goal is simple: find some holy artifact for some reason or another. Getting to that artifact will be the hard part!
I would have the players trasverse across a great map, fighting various random enemies such as golems, trolls, witches, etc. etc., but the real tests would come from (mostly) non-violent tests like deciding whether to postpone their journey in order to help a village fend off another village's attack. Moral grays would be the calling card of this NES and no choice would be entirely right and the right answer may not even be 'good'. Why would these choices matter? Well because to find the holy thing you'd have to conduct yourself in the way that is 'truly knightly', but what that means is very much left up to the players to decide (of course I provide a sparse code for them to interpret).
What do you guys think?