Amazon S3 is a huge benefit to the gaming industry. In this day of downloads being the main way to access games, it is a massively popular medium for storing the game data to be served out to gamers. Its distributed, fault-tolerant and highly scalable architecture means that it is a reliable way to get game files to users.
Did you know that you can run games directly on Amazon S3 though?. HTML5 games can live in an S3 bucket and be served directly from there.
There are quite a few games running and being served directly from s3 buckets.