Ah the subtleties lovingly layered onto this campaign....
Bulletin Board
Bulletin Board 1.0 by Thirsty Bear allows players to leave messages for all to see. These messages remain as long as the player who left the message remains connected - a great way to tell other PCs you are online (and maybe looking to party?).
Banking
You may deposit coin based wealth with the Banker and deposit your items in the safe. These can be retrieved where ever there is a Banker and/or Safe setup. Currently this is being switched over to the NPCACT system, but for the persistent container portion which may be retained from the old system.
Dye Kit
The DYE KIT allows players to customize the look (color only) of their armor and clothing. Now, not ALL +2 armor has to look the same!
Riddle Database
by bloodsong (http://bloodsong.warped.com/nwn/) - with a goal of more than doubling the riddle database in size with the next iteration (the database and software are installed and running now, when I upgrade the system next I'll add the new collection of riddles).
Vuldrick's Flexible Pantheon System
This system has been robustly modified to provide a wider range of features including a system which tracks a PC's favor with each deity, and which modifies the type of reactions and assistance one can hope to receive at a temple or from any (NPC) representative of a deity.
SUPER SECRETS
Incorporating "BLACK TOWER: Secret Bookcase", a home-brew trigger-based secret-placable system, Vuldrick's Searchable Library, and a few other juicy code bits from hither and yon (honestly, if I told you about this stuff it would not be much of a secret anymore would it?).
Dynamic Logbooks
Zaddix's original with modification by caesarbear and finally worked-over by our house code-monger.
Enhanced Map Journals
The original idea for this comes from a poorly credited script I found on the NWN Vault. If anyone knows who originated the script let me know and I will credit the orginal coder here. The script was part of map_demo.mod in which the spotlighted OnAreaEnter script caused a PC to gain experience points with each Area they entered, but only once per area. To do so the PC would carry an item in their possesion dubbed a "Map Journal". Nice, but the thing did not seem to do anything on its own (the Map Journal) - or at least I could not discover from the module what it was supposed to do. So I jazzed it up by causing the use of the item to reveal to the player what the level of Area Knowledge the PC has of the current area and what the PC recolects of past experiences here.
Custom Campaign Drugs
Based on "Drugs of Faerun" by Jeremiah Teague whose work also cites Michael Janicki for the Addiction Rules. This unique implementation features 16 custom drugs with unique effects, addiction possibilities and side-effects.
Dom Queron's Graveyard Ambience Package
This one is just soooooo sweet. Demo Module for Dom Queron's Graveyard Ambience Package
Info Page:
http://gulbsoft.de/phpBB2x/g_viewcat.php?p=1299
Random People v1.0
Really nice stuff that.
Much much more...
And then some more after that. Stay tuned for details.
A Neverwinter Nights Campaign