The graphics were mediocre at best -
nothing to compare with Myst 3:Exile.
the game play was a pedestrian search for pieces of cloth with symbols - none of the ingenious clue searching and then puzzle solving like the previous games.
There is no sign of Artrus and Catherine.
only their daughter - Yeesha - who sounds a bit like a tree-hugging hippy to me.

I played it - in a matter of hours rather than the months the previous games took me.
I didn't bother going online - and by the time I was curious enough to look at the online community - it had closed.
The whole concept of an online Myst was doomed to failure anyway.
Nonetheless - the game makers didn't have the online part right before they started - and it never worked successfully.

~You chaps didn't miss a thing.