This game was too good to be left with the meagre review here.
Using the same game engine as Baldur's Gate, arguably the best computer game EVER, this is more of an inferior production line model.
This is Dungeons and Dragons for the computer. Here you have six characters that you can choose yourself - for experienced D&D players I chose Paladin, Barbarian, Ranger, Thief, Cleric, Magic User. These are either fighters (killing machines), clerics (holy men with healing spells and slightly less killing machines than fighters), thieves (open locks, disarm traps, sneak around), and magic users (cast large variety of spells).
Plunged into a generic icy fantasy world - but generic because D&D influenced everything that came after - your team of characters has to fight a great threat - whether for honour, gold, or joy of killing depending on your characters' alignment. So the game is basically - go to a location, find out what you are killing and why (usually), kill the enemy, take everything they have, move to new location and repeat.
There is a fair degree of repetition in the game but your characters' constantly increasing abilities and the huge varieties of weapons, armour, and other gizmos make dispatching the hundreds of different types of enemy good fun.
For a game with huge personality and character, less linear, and a total immersive experience buy Baldur's Gate Trilogy. For many, many hours of hack and slay fun using your own choice of adventurers Icewind Dale II does the job.
PS. You don't need to have played Icewind Dale I first.
PPS. Make sure one of your characters chooses the Tracking skill to avoid being stuck half way through the game.