Dexter: The Game for Mac OS X (10.5 and higher) is now available at the Macgamestore (http://www.macgamestore.com). It costs US$9.99.

Here’s how the game, based on the Showtime series, “Dexter,” is described: “Dexter Morgan is a serial killer. Driven by his need to kill, maintaining his average-guy facade has never been easy. He spends his days as a blood spatter analyst for the Miami police department, but it’s after hours when Dexter is able to fulfill the needs of his dark passenger, exacting his own brand of justice on those criminals who truly deserve to die.

“In the game, help Dexter choose his next victims while always protecting his identity. Analyze crime scenes, uncover evidence and use stealth tactics to stalk your prey. Is the case better served by the courts or the Dark Passenger? The outcome of every choice and action resolves around the Code of Harry: only kill the guilty, maintain the mask, and above all, don’t get caught!”