Do you remember, especially during childhood, that you were scared about anything in any PC game, and may even feared to play it?
I remember, that Harry Potter 1 PC, I was scared, when I had to escape from Filch at night in library.
Found footage of the typing game I was describing. (https://www.youtube.com/watch?v=rtRv7Sn29v8)O_O
The most recent example I can think of is probably the Silent Hill demo, PT. Never played it myself but watched a roommate play it. Was pretty messed up and was quite scary to watch.
I remember being scared of certain things back in the day as a kid. Earliest I can remember is playing Super Metroid and being terrified of fighting bosses. I remember being scared to fight Kraid, turning the game off as soon as I entered Crocomire's room, and in general just avoiding going to the Wrecked Ship to fight Phantoon.