No, because the data is always stored in the blockchain's history, so it can always be accessed.
When I was toying with Bitcoin when it was $0.05, a hard disk crash lost me some. How would you recover it?
This is probably what the kid that lost his Babe Ruth baseball card feels like.
Could anyone explain?
What is a peer-to-peer system without peers?
Nobody thinks it magically does anything. There's an incentive built into the system for people who have nothing to do with the game to keep the blockchain and so the game data alive.