When you started out making and selling “Mystery House” (plastic baggies and all). Was there a moment when you realized that it was becoming an actual business? Or when you realized just how large it would become?
It’s probable that Ken and Roberta realized from close to the outset that they could make a living from this. Steven Levy’s book Hackers contains a lively account of the early days of Sierra. He writes (about Mystery House):
Ken and Roberta, in a fit of optimism, had bought a box of one hundred blank disks at the nearby Rainbow Computing store, and once the fliers were sent to computer stores and the ad placed for a reluctantly paid two-hundred-dollar fee in the May 1980 issue of a small magazine called MICRO, they waited. The phone rang, on that first day in May, and then there was a break and then it rang again. And from then on, it would be a long time before Ken and Roberta could count on their phone not ringing.
Ken and Roberta made eleven thousand dollars that May. In June, they made twenty thousand dollars…