Now think about what should be down each hallway at each level.įor variation, you can leave a few hallways off somewhere on one of the floors and use it for an 'open air' cafeteria. Repeat for a third level if you have need.
Take your atrium up a level and install a balcony if you want. Now think about how many levels you want in your vault, 2-3 is usually a good number.
Add hallway doors every other tile down the hallway that go to specific functional areas.
Start with an atrium design you can live with.