Firia said:
Tjebbe said:
Both said before, but worth repeating: Planescape: Torment, naturally.
It has been said before, but it was said by someone being a mild Troll, so I basically disreguarded him. However a few others and yourself have said it was story telling gold, but I haven't yet seen anyone explain why.

I'm hoping you'll step up to the plate on that one.
Hmm.. it's very tough to describe exactly why Planescape is amazing without giving it away, but I'll give it a shot.
You start the game off dead, on a slab in a mausoleum-type thing. You wake up, and have no idea who you are or even what your name is (hence why you are always referred to as The Nameless One). Your only clues starting off is that you are covered in scars, and some of these scars are actually words you or someone else has carved into you, telling you to get your journal, and that will explain everything. The only other help you have is your new friend Mort, the floating skull (Yes, you read that right), who reads to you what is written in the scars on your back (I wonder if he read everything to you that there was?), who explains that while he doesn't know who you are, he's happy to help out. Then your quest begins to find out who it was that killed you, why dying didn't stick and why it refuses to do so, and the how's and why's of all this came about.
Plus the game has some of the most expertly written and interesting characters in all of gaming, all of whom in my opinion are fascinating additions to the world the game inhabits. Or worlds, I should say. Did I mention the game takes place in a dimensional nexus of sorts, with doors to very strange universes popping up all the time out of nowhere? Yeah, it's pretty nuts.
I could go on for a while, but then I'd spoil the greatness of the title and I wouldn't do something so terrible to the unfortunate soul who decided to read this. The end-game especially and discovering how exactly these circumstances came about for the nameless one is really quit something. There are a handful of games that have made me examine myself as a person, and Planescape: Torment is one of them, the first one and the best.
Hope this helps explain things
edit: One of the other few games that have made me examine my humanity is in the post right below me, and I'm moderately ashamed I forgot to mention it in my earlier post.