Quest

Quests are objectives given to the player to complete.

Background
Quests always have an experience reward, and can often have other assorted rewards appropriate to the quest itself. Games with the Karma mechanic may also have quests that affect one's Karma standing.

By game
In Fallout, Fallout 2, Fallout 3, Fallout: New Vegas, Fallout 4 and Fallout 76, there various ways in which to solve quests. The Fallout Tactics equivalents, called "missions", and Fallout: Brotherhood of Steel quests are linear.

Types
There are three different types of quests:
 * Main quests form the main storyline of a game.
 * Optional or side quests, are quests that are entirely up to the player to complete or not and do not prevent achieving the goals of the main storyline, though they may tie into the story.
 * Unmarked or freeform quests are small things to do on the side and do not appear in the quest log.