Fallout's co-creator and the original game's producer, Tim Cain, wasn't really supposed to share ideas with the rest of the team working on what would become the post-apocalyptic classic, so he scheduled a hush-hush after-hours pizza party to demo the engine that would eventually power the RPG.
"I was making engines kind of in my spare time," Cain says in a recent interview with Game Informer. "My job at the time, at Interplay, I was making installers for a few other games, because when games used to come on physical floppy disks – multiple ones – you had to have an installer, and there were a whole bunch of parameters for them."
