In a new vlog on his YouTube channel, veteran programmer and RPG designer Tim Cain revealed some more of the background he and his team initially planned for Fallout's vaults. The crew at Interplay conceived of there being 1,000 Vault Tec vaults in the United States, a figure with some in-game and real-life logistical issues that Cain then explores, all with the caveat that this is him having some fun: "This is just me talking about it—it's not canon!"
First and foremost, the 1,000 number was just an aesthetic choice: "The only reason this pin was even placed in the original game was when Leonard [Boyarsky, Fallout 1's lead artist] was doing the vault suit, he asked me how many digits he'd need to keep on the back." Cain said. "I thought, well, let's just say there's a round number, there's a thousand.
