Fortunately, addons can add all that and more. Much like Classic, The Burning Crusade is also fairly barebones and essentials-only, lacking player-favored tools like in-built quest helpers, dungeon maps, and more. This can be just about anything: from improving the map, adding in-built damage meters, or even overlaying a game of Tetris straight into WoW. They alter existing game elements or add useful features to improve the all-around gameplay experience.
Addons are user-made extensions or mods to World of Warcraft.
