Advanced Layout Tips

Keeping your layout logical and structured is essential for all aspects of management.

The attacker AI behaves as follows:

1. Move through all rooms on one floor to the end
2. If no elevator is at the end, move back until one is found
3. On new floor, go left, then right if possible

The best defense is to guide the enemy through the rooms containing the dwellers with the highest STR and END which means your power rooms have to be the first in line and on the top floors.

Incident AI:

The following rules apply to incidents:

1. Incident spread to nearby rooms if unchecked
2. If all rooms have been effected once, incident will end
3. Incidents cannot spread through dirt
4. Molerats only spawn in rooms connected to dirt, elevator block spawning chances.

This means all rooms you do not use activily, group them together and separate them from activly used rooms.

The following design is the most effective.

Use the empty space here to build more power rooms as needed. Radio stations and top tier rooms.

You could remove the learning rooms or have half of them depending on how many children you plan to have at any given time.

Storage rooms, living quarters and Science/Medlabs are almost always empty. Have them on the bottom of the vault to ignore all of the incidents happening there.