[ozzie]

First, The Dig is not a Tim Schafer game, and second, I also haven't played it for some time now.
I liked some puzzles, but at the moment I am missing the direction. I don't know what to do.
Maybe I will get back to it, some day.

Actually, I finish most games that I start, because I seem to know what I want and the games turn out to be mostly what I expected.
Oh, expect Evil Twin. Great graphics, art direction, story and atmosphere, but horrible camera and awkward controls.
The gameplay is very punishing, and it is nearly always not your fault. The camera doesn't show you where you have to jump next and often you even can't see your character.
Those people who thought that Psychonauts had a bad camera haven't played this game. Or Tonic Trouble (less severe, but still annoying). Or Rayman 2 (playable still).