Age has nowt to do with em, you'll love em!
Personally of the 3 I prefer Monkey Island as it's very funny too. Myst, i found to be very dificult at times and my 'puter nearly ended up out the window on several occasions playing it!
I remember --years ago doing a Lord of the Rings game on the old Commodore 64 'til late at night and getting soooo frustrated with it that it nearly went out the window!
And we do these games for fun!!!
Sorry to reply so late--only just seen your Q.
It was great fun--I cheated a bit and got a walkthrough just to get me started and get the feel of it and then I was addicted.
Have fun
lol
Barbara