If you do mods, Make one where you start as a child and grow up but depending on how you act and what you do people like or hate you. Plus there should be enemy armies that attack the village randomly. Wanderers int he forest, generated structures, traders that spawn randomly, new mobs, and people that protect villages. Also there should be a village ruler and you can either help him, work in the village, or kill and take over.

Craftable nether brick.