An expansion pack, expansion set, or supplement is an addition to an existing role-playing game, tabletop game or video game. These add-ons usually add new game areas, weapons, objects, and/or an extended storyline to a complete and already released game. While board game expansions are typically designed by the original creator, video game developers sometimes contract out development of the expansion pack to third-party company, or it may choose to develop the expansion itself (see Hellfire for Diablo). Board games and RPGs have been marketing expansions since at least the early 1970s. he price of an expansion pack is usually much less than that of the original game. As expansion packs consist solely of additional content, most expansion packs require the original game in order to play. Games with many expansions often begin selling the original game with prior expansions, such as The Sims Deluxe Edition (The Sims with The Sims: Livin' Large). These bundles make the game more accessible to new players. When games reach the end of their lifespan, the publisher often releases a 'complete' or 'gold' collection which includes the game and all its subsequent expansions. Expansion packs are most commonly released for computer games, but are becoming increasingly prevalent for video game consoles, particularly due to the popularity of online console services such as Xbox Live and the PlayStation Network. One such console expansion pack would be the Halo 2 Multiplayer Map Pack which contain 9 new maps and updates for the game that were only available for Xbox Live users