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
The soundtrack for "World of Warcraft" was composed and arranged by Jason Hayes, Tracy W. Bush, Derek Duke, and Glenn Stafford and conducted by Eímear Noone. It was released on November 23, 2004, together with the collector's edition of the game. It is sold separately on one CD in the MP3 format. On January 12, 2011, Alfred Publishing produced an officially licensed sheet music series for vocalists, pianists, strings, and other instruments, "World of Warcraft Sheet Music Anthology" in solo and accompaniment formats with CD. These works include four pages of collectible artwork and vary by number of songs included. In 2018, a remix of the song from the game, "Hymn of the Firstborn Son", was nominated for "Best Game Music Cover/Remix" at the 16th Annual Game Audio Network Guild Awards.