here's a cool video where one of the Myst creators talks about how they just barely made Myst work loading from a CD https://youtu.be/EWX5B6cD4_4
thinking about Myst and oldschool survival horror
Myst's prerendered backgrounds and atmosphere make me think about classic survival horror. They're obviously not the same thing but I think there's parallels in why people like them. Obviously you have to think a lot less in, say, Resident Evil, but Silent Hill had the hard puzzle difficulty that is probably even harder than stuff in Myst