"Diablo III is an action role-playing game in a hack and slash and dungeon-roaming style, currently in development as the third installment of Blizzard's Diablo franchise. It was announced on June 28, 2008, at the 2008 Blizzard Entertainment Worldwide Invitational in Paris, France."
Source: Wikipedia, "Diablo_III," available under the CC-BY-SA License.