World of Warcraft is a MMORPG created by Blizzard Entertainment and released in 2004. Set in the fantasy universe of Azeroth, the game allows players to choose from various races and classes, embark on quests, explore expansive regions, and participate in both player-versus-environment and player-versus-player battles. Known for its rich lore, frequent expansions, and large global player base, it has become one of the most influential online games in history.