Good Single Player Modules...

[Sar]

Ok, make your list of good Single Player modules in here.

I was disappointed with the official campaign, and uninstalled the game. But I re-installed it after 6 months away or so, and would like to play some decent modules.

Oh and note in your post if the module requires any of the expansion packs.

 

[Hyuga Hinata]

The Shadowlords and Dreamcatcher series are very good singleplayer modules. Do a search for them at Neverwinter Nights Vault

Tip: Play the Shadowlords campaign first, since Dreamcatcher is a sequel.

 

[Fellbeast]

If you can read/speak French, this one is a good one:
www.ravenloft.fr.st

And of course, there's always the nwnvault

 

[Scorn]

The NWN module Witches Wake is very good, focuses more on RP'ing, in fact, combat doesn't give any XP at all(!!)

It may be a bit hard to get used to since they've nerfed some things (e.g. you can't rest 2 secs after you've rested and you only heal a limited amount of HP each time you rest)
But the story is great.