Planescape: Torment
Walkthrough by Steve Metzler

This is my comprehensive guide to what is possibly the most impressive isometric perspective RPG ever made. Torment was made by Black Isle Studios, the same team that brought you Baldur's Gate II: Shadows of Amn.

The game utilised the Infinity engine from Bladur's Gate, but it was enhanced somewhat, bringing the view closer to the ground so that the characters are larger and more realistic.

Summing up, here's the last paragraph from my review:

Torment is a dark journey into the soul of The Nameless One, a soul that is seeking release from the immortality that binds it to this forsaken place. If you don't like your games on the heavy side (laced with pathos and wry humor); with lots of dialogue and lengthy descriptions of characters and places, then it may not be for you. For me, this has to be one of the best RPGs I've played to date, perhaps the best.

The essential version 1.1 patch. Fixes various game play issues, most notably a memory leak that caused the game to slow down and then eventually crash after about an hour's play.