NPC means non-personal character, or non-player character, that is, a character that is controlled by code, not by someone else playing the game. They usually look a little different compared to the player characters. You need to click on them to talk to them.

Some NPCs buy and sell items, others give you quests, some take you to new places and back again, others give you clues, some heal you, others change something about your character, and some just say something to make you laugh.

Below is a list (incomplete) of NPCs.

Who (name)	What (function)	Where (area)	Which (server file)
Aidan	monster points quest	Tulimshar
Doctor	a clever joke	Hurnscald
Doug	snake lamps quest	Dimond's Cove
Elanore	healing until level 11	Tulimshar
Ian	basic information	Tulimshar
Ishi	monster points quest	Tulimshar
Ishyah	buy and sell	Desert
Neko	buy and sell	Tulimshar
Nicholas	iron ore quest	Hurnscald
Nicolas	hair dresser	Tulimshar
Sandra	red scorpion stingers quest	Tulimshar
Taro	travel to snowland	NW Woodland
Vincent	bug legs quest	Tulimshar
Xanith	gender change	Snow town

--Vink