This weekend's GOG sale is 'activision' (ZOMBIE SIERRA) quest games - King's Quest, Police Quest, Space Quest.
I went to a lot of trouble many years ago to find a legit police quest collection CD. After I did, I never actually played the games because they were a bit hard to get running smoothly on my computer setup at the time. (Similarly, I have obtained Leisure Suit Larry: Love For Sail but not gotten very far into it because running it was a little awkward.)
I never owned KQ7 afaik, but my then-boyfriend bought a copy, so I did play it through once. Means my memory of it is much hazier than it is for the others. Mask Of Eternity, which is a travesty and not KQ8 at all, I have not played. That probably doesn't surprise you.
And weekend sale or no, I don't think that's likely to change now.