BlizzCon is an annual gaming convention held by Blizzard Entertainment to promote its major franchises including Warcraft, StarCraft, Diablo, Hearthstone, Heroes of the Storm and Overwatch. The first BlizzCon was held in October 2005 and since then all of the conventions have been held at the Anaheim Convention Center in Anaheim, California, in the same metropolitan area as Blizzard's headquarters is in Irvine. The convention features game-related announcements, previews of upcoming Blizzard Entertainment games and content, Q&A sessions and panels, costume contests and playable versions of various Blizzard games.
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