If you ignore the stupid block puzzles in the first Soul Reaver, that is. Basically, the entire Legacy of Kain saga is made of concentrated win. Voice acting is top-notch, and Crystal Dynamics managed to write a brilliant story that is neither too difficult, nor too easy to follow. The only ****-up is Vorador's presence in Blood Omen 2, the explanation of which was cut from Defiance because CD had run out of time. Obsidian isn't the only developer prone to that.
Older Kain.
The Sanctuary of the Clans.
The ruined Pillars of Nosgoth.
"And so it unfolds..."
Spectral Reaver.