Blizzard Entertainment hopes to continue to produce a flurry of hit games. A unit of Activision Blizzard, the company is the leading video game maker in the massively multiplayer online role-playing games (MMORPG) niche. It develops and publishes software titles such as the genre-dominating World of Warcraft (about 10 million subscribers), Starcraft, and Diablo series available for play on PCs. Blizzard offers its Battle.net online gaming service that enables the worldwide social gaming experience for its titles. The games are sold through retailers and online download. The company has also leveraged its popular games into related products such as action figures, board games, graphic novels, and comic books.