Blizzard Entertainment's next-generation massively multiplayer online game--confirmed as being code-named "Titan" and already playable--is not the only mystery title that the developer-publisher has in its pipeline. Blizzard is working on yet another new game.

　　According to Blizzard's career portal page, the California developer is hiring software engineers for an "Unannounced Game Title." The game in question is listed separately from Blizzard's "Next-Gen MMO," indicating it is a different project from Titan.

　　As for the position itself, the listing states that the company is "on the hunt for a creatively minded and talented individual to serve as tools engineer for its newest game team." (Emphasis added.) No other details about the project were listed.

　　If the project is indeed different from Titan, it will be the fifth confirmed game Blizzard has in the works. Currently the Irvine, California-based company is working on Titan, Diablo III, and the two Starcraft II expansions Heart of the Swarm and Legacy of the Void. According to an allegedly leaked schedule, Blizzard is also planning for two Diablo III expansions, two more World of Warcraft expansions, and a Starcraft II project code-named "Phoenix."