Warcraft
In 2004, Blizzard Entertainment moved the series away from the real-time strategy genre and released "World of Warcraft", a massively multiplayer online role-playing game (MMORPG). Requiring a subscription fee to be paid to play, it also introduced regular additional content to the series in the form of patches. "World of Warcraft" gained popularity worldwide, becoming the world's largest subscription-based MMORPG in 2008. The game reached a peak 12 million subscribers worldwide in October 2010. "World of Warcraft" has had seven expansions as of 2018. During the production of "", Blizzard co-founder Frank Pearce stated that "If there's a team that's passionate about doing another "Warcraft" [real-time strategy], then that's definitely something we would consider. It's nothing that we're working on right now, we have development teams working on "", "", "Diablo III", and when those teams are all off the projects they're working on, they'll be intimately involved in the discussions about what's next".
Warcraft III: Reign of Chaos
After the success of "" (1995) and "" (1996), Blizzard originally planned to continue the story with an point-and-click adventure game called "". This game was supposed to tell the story of Thrall from being raised in captivity to becoming the leader of his clan. However, in 1998, Blizzard canceled "Lord of the Clans" for not meeting the company's quality standards. Thrall's story was instead worked into "Warcraft III", whose development began in early 1998. The game was announced as a role-playing strategy game (RPS) on September 5, 1999, at a press conference by the game's lead designer Rob Pardo inside the Henley-Suite at the European Computer Trade Show 1999.