Downloadable Content / DLC

Downloadable Content refers to, as the term implies, extra content that can be downloaded in order to enhance one's gameplay experience. Downloadable Content, or more often referred to as DLC for easy reference, can include a wide variety different options. Some of these options include, but are not limited to:

• Extra Missions and Game Content
• This kind of DLC is an addition to a game that you already own. It is often meant to build upon the originally established story with either a continuation their of or the creation of side-plot. Some examples of this can include DLC for the game Mass Effect 2 which allows players to engage in additional missions and objectives where they acquire new characters to join their group in the overall story.
• Map Packs
• An incredibly common term now-a-days. This DLC type is often used with First-Person Shooters like Call of Duty or Halo and looks to add extra maps for players to fight on and explore in the online multiplayer functions; thereby allowing them to have a more varied range of gameplay to enjoy.
• Game (Digital Download)
• Exactly what it sounds like. A number of games that have come out recently are sold entirely via the internet and are simply downloaded to the system that they be played with. Most often these games are from independent and smaller developers, but plenty of large-name titles are released in this manner as well.

Downloadable Content is most often sold exclusively via the internet and requires the online service of the respective video-game system (Xbox Live, PlayStation Network, Wii Ware, etc.)