Caps are a currency in Fallout Shelter that you will constantly use to build and upgrade new rooms, buy weapons, and much more. During the game, you'll often run out of Caps, especially when you're repairing everything after a raid or expanding your shelter. To prevent you from getting into unpleasant situations with a lack of currency and to keep your settlers happy, we'll show you a few methods of how to get Caps in Fallout Shelter.