I grew up with Return of the Incredible Machine: Contraptions, and the game and its soundtrack is indelibly inscribed into my memory—to this day, Pictures at an Exhibition is one of my favorite songs.
I similarly grew up with The Incredible Machine 2, and Pictures at an Exhibition haunted me for decades because I didn't know its title. Then finally, one random day NPR played it as part of a block of classical music _and_ said Mussorgsky's name, and that was good enough for me to be able to track it down and experience a wonderful epiphany 20ish years in the making.