long-lost fall out The video game series takes place in an alternate history where American scientists figured out how to use nuclear power reliably after World War II, leading to decades of social and economic prosperity wrapped in a shiny retro-futuristic aesthetic. Over time, this way of life ended as resources became scarce, culminating in a “World War” in 2077, which ended in a global nuclear holocaust. Vault-Tec, a company specializing in fallout shelters, foresaw the war and built dozens of fallout shelters, called “Vaults,” across the United States. Civilians could buy space in these bunkers, which were secretly designed as test facilities for various sociological experiments.For example, in Fallout 4 (most recent main series game), Vault 111 is used to test the effects of cryogenic technology, Vault 75 trains child soldiers after staff murder their parents, Vault 81 exposes its inhabitants to various diseases to design a panacea Medicine, etc. Be careful where you seek shelter, even if it looks worse outside.