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".
World of Warcraft: Rise of the Horde
World of Warcraft: Rise of the Horde is a novel by Christie Golden set in the Warcraft Universe. It was published in December 2006. Golden also has a commitment with Blizzard Entertainment and Simon & Schuster to write a StarCraft trilogy. Originally presumed to be the sequel to her previous 2001 book, , it depicts the draenei's escape from Argus and the rise of the Horde, following their shift from a shamanic race to a warmongering one. The book features major Warcraft characters, such as Durotan, Ner'zhul, Gul'dan, Orgrim Doomhammer, Kil'jaeden, and Velen. The story tells of how the orc clans and the noble draenei slowly become enemies due to deception and arrogance, and shows the downward spiral into which the orcs are thrown, and explores the role that demonic forces play in the Horde. It also expands on the origin of the Burning Legion, and the events preceding the first game of the Warcraft series.