NPC's

A Non-player character, or NPC, is a character not controlled by a player. Players can usually talk to NPCs, but they are not attackable. (If they are attackable, they are considered monsters.) They include store owners, quest contacts, bankers and civilians. NPCs can give out quests, sell items, restrict access to certain areas and perform other vital duties. Many have no useful function, but provide atmosphere or interesting conversation. Some can talk in public, but this will not appear in the chat list. NPCs names have a yellow colour. NPCs form the foundations for quests: beginning them, continuing the story, giving information and handing out rewards and items.

There are a wide range of monsters and people in this to fight and to buy and sell to and from, there are bosses, slayer monsters, monsters to train on, and all sorts of things to loot from.