Fallout Shelter rooms

There are a total of 20 available rooms that begin at level 1 and can be upgraded with caps to a maximum of level 3. Rooms can also be merged by placing an identical room of the same tier next to it. Each production room requires a specific S.P.E.C.I.A.L trait to run at its maximum efficiency, while training rooms increase the traits of the selected dwellers.

Room overview
The cost of each new room is dependent on the number of those rooms already in your vault. E.g. Your first Med Bay is 500 caps, while your second Med Bay costs 600 caps, and so on.

Production Rooms
Production rooms yield one resource, except for the Nuka-Cola bottler which produces food and water. Production time is dependent on the number of dwellers and their trait level for the room's required trait. Once a room has produced a load, they do not produce any more until you collect the resource. Depending on the luck of the workers, collecting the resource may also give a sum of caps.

These rooms can be driven to produce resources quickly. Depending on the probability given in-game affected by the luck and the traits of the workers, the room can instantly yield resources and a number of caps equal to the percentage of the chance taken. A failure on the action leads to an inevitable incident in that room, either fire or radroaches.

Although it is not visible in their SPECIAL stat bars, wearing outfits that raises stats beyond 10 increases production nevertheless.

Training Rooms
These rooms raise one of the traits for the dwellers stationed in it. Training time depends on the dwellers' current level and how many occupants are in the room. Going from level 1 to level 2 takes a few minutes while going from 9 to 10 takes up to 20 hours. Dwellers train faster with more dwellers in the room.