The end of the world as humans know it is a fascinating concept game developers love to play around with, but only a handful have explored the Armageddon trope to the degree of success that Bethesda's Fallout has enjoyed since its debut in 1997. Vaults are a big reason for Fallout's rise to stardom and subsequent dominance of the post-apocalyptic survival genre, and with every installment that releases, players look forward to uncovering the stories behind the human shelters through missions. Fallout games typically begin in these environments, and Fallout 5 could look to some of the franchise's most famous Vaults to kickstart its journey.