One of my favourite parts of Fallout 3 was Big Town. Helping out a small settlement, building its defences and attracting more settlers was fun, and made me feel like I was actually impacting the Capital Wasteland. The prospect of building multiple entirely new settlements from scratch, and customizing them to my liking, is something that I hadn't thought of before, but that is now my most anticipated feature for Fallout 4. I cannot wait for November 10th.