The short answer is “2TB worth.” Game sizes vary wildly these days. Many indies will use up less than 1GB of storage on your hard drive, while a few major AAA games can take up 100GB or more. What you choose to play and how you manage your hard drive will determine how quickly it fills up. All that said, we estimate that most major Xbox One games require 30GB to 50GB of storage space. If all your games fall in that range, you'll be able to fit about 35 to 45 games on a 2TB drive.