ah, was about to mention this, yes. you can find it online here: http://doo.nomoretangerines.com/nevhood/nevhall.htm
have read the whole thing, and it has some fun bits.
also, the myst series had plenty of text, progressively more as more games were made. uru has books and notes strewn everywhere, as they're sort of, along with looking at pretty things, the point of the game. and the three novels build on things even more.
another, more recent thing that comes to mind is Defender's Quest, which has stories / background text / random thoughts from the developers unlocked as the game progresses.
but yeh, game lit is usually written pretty poorly but full of fun ideas, and it can feel like a more intimate connection to the developers themselves, which is nice