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Warcraft is a franchise of video games, novels and other media originally created by Blizzard Entertainment. The series is made up of four core games: Warcraft: Orcs & Humans; Warcraft II: Tides of Darkness; Warcraft III: Reign of Chaos; and World of Warcraft. The first three of these core games are in the real-time strategy genre, where opposing players command virtual armies in battle against each other or a computer-controlled enemy. The last and best selling title of the franchise is a massively multiplayer online role-playing game ( MMORPG) . Expansion sets were also released for multiple games in the series, each adding more content to each game as an effort to expand the product life span of each. Warcraft: Orcs & Humans had no expansions, Warcraft II had Warcraft II: Beyond the Dark Portal, and Warcraft III had Warcraft III: The Frozen Throne. World of Warcraft has had multiple expansions, namely World of Warcraft: The Burning Crusade, World of Warcraft: Wrath of the Lich King and World of Warcraft: Cataclysm.[ 1] [ 2]

In the early 90s Blizzard struck a deal with Games Workshop to create a a PC version of the " Warhammer" table top miniatures game. After completing work on the game, the deal fell through, and Blizzard, left with unfinished and unpaid work on Warhammer, created " WarCraft" .