Blizzard Entertainment created World of Warcraft.
Blizzard Entertainment . Shortly thereafter , Blizzard released Warcraft : Orcs & Humans . Warcraft is a franchise of video games , novels , and other media created by Blizzard Entertainment . The series is made up of five core games : Warcraft : Orcs & Humans , Warcraft II : Tides of Darkness , Warcraft III : Reign of Chaos , World of Warcraft , and Hearthstone . World of Warcraft ( WoW ) is a massively multiplayer online role-playing game ( MMORPG ) released in 2004 by Blizzard Entertainment .