That UC2 example doesn't make much sense. The gameplay involves some puzzles and platforming and it has a variety of different environments. It didn't feel repititive to me. Kinda agree with Shyber though... but maybe they're not trying to spoil anything for us, hopefully. Any idea how long the game is supposed to be?
I think what you're looking for is a REALLY good novel. Plenty out there btwIf story is good than I won't care much even if gameplay takes the back seat.