Lets say you live in a world where the world government has decided people are getting too addicted to the internet and ordered the internet to be shut down for 5 years. The 100 GB of storage is all you have (excluding essential system files for your Operating System). You have 24 hours before the internet is getting shut down. What do you download?
Aside from the fact that playing something youve created is an entirely different experience to discovering something unexpected that someone else has created, you would need space to store your created games still.
I mean, just because the Internet is down doesn’t mean you can’t go buy another hard drive in a brick and mortar store later.