There are a large number of quests in Lineage II. Generally they can be divided into delivery/hunt quests, one-time/continuous quests according to their frequencies, and class transfer quests. 

Delivery quests are comprised of the player delivering an item to a specific NPC that the NPC designates. It is a relatively easy task, but sometimes requires traveling great distances.

Hunt quests are comprised of hunting a desired monster and delivering the proof to the NPC, or obtaining items. There may be cases where the individual may be able to hunt, but also high-level cases where the quest may only be fulfilled with the aid of a clan or party.

One time quests end with the fulfillment of the quest, but there are quests that may be repeated for more rewards. Players can decide whether to continue a repetitive quest or not by talking with the NPC.

Repeatable quests can be repeated for continuous reward. The decision of whether or not to continue is made through conversation with an NPC.

Class transfer quests are a series of tasks to be completed in order to change the character's class. The first class transfer is available at level 20, and the second at level 40. Please see the Races, Classes, and Skills section for more information about available classes.