|For an overview of Bottle caps in the Fallout series of games, see bottle cap.|
For an overview of currency in the Fallout series of games, see Currency.
“These are worthless bottle caps. You've heard that at one time they were used as money, though you suspect its only a story.”— Game descriptions in Fallout 2
Since the introduction of minted coinage by the NCR, bottle caps have been rendered useless as legal tender.