List of Blizzard Entertainment games
Since the release of "Warcraft", "Diablo", and "StarCraft" (1998), Blizzard has focused almost exclusively on the "Warcraft", "Diablo", and "StarCraft" series. The sole exception has been the company's latest title, "Overwatch" (2016). All of Blizzard's games released since 2004 still receive expansions and updates, especially the long-running massively multiplayer online role-playing game "World of Warcraft" (2004). With over 100 million lifetime accounts as of 2014 and US$9 billion in revenue as of 2017, "World of Warcraft" is one of the best-selling computer games and highest-grossing video games of all time. Blizzard Entertainment has developed 19 games since 1991 as of 2018, in addition to developing 8 ports between 1992 and 1993; 11 of those games are in the "Warcraft", "Diablo", and "StarCraft" series.
Gameplay of World of Warcraft
In a change from the previous "Warcraft" games produced by Blizzard, "World of Warcraft" is a massively multiplayer online role-playing game (MMORPG) where thousands of players can interact with each other. Despite this change, the game draws many similarities with its predecessors. These include using the same setting of the world of Azeroth as well as following a similar art direction. In common with many MMORPGs, "World of Warcraft" requires players to pay for a subscription, usually either by credit card or by buying a card from a retailer to redeem for a predetermined amount of subscription time; in addition, game time may be acquired from using in-game gold to buy a WoW Token.