Opinions on having NPC Village system?

Would you like to have NPCs in adventure mode similar to Terraria? NPCs that you can unlock by finding them in the world and helping them in some way, then if you have a valid house they can move in, each having their own lore to discover and to trade/buy items, and you could also create a village for them to live in and set up defenses. Or do you think the experience would be better "alone" ?