Guild Wars 2

OK, so you can’t really kill NPCs, they just respawn. I had an idea where the NPCs respawn, but if you’ve beaten the NPC the one that respawns is neutral, not hostile. So instead of it attacking you, it just stands there until you attack it. This would make world exploration even more fun as you would probably go out of your way to kill every hostile NPC in every zone until the whole world is neutral to you. That’s pure dominance.

I don’t think either Risen or krait would give a kitten if you’ve killed them before.