James Patterson's Catch a Killer on Facebook is rated 'M' for mature

James Patterson's new Facebook game Catch a Killer is being billed as the first 'mature' game on the social network. And once you start playing, that's all too apparent. The mystery game - created by the prolific author in conjunction with Sony Online Entertainment - features piles of dead bodies, blood spattered around locations like a Jackson Pollack painting and interrogation subjects who drop the occasional four letter word.

This type of mature content is nothing you haven't seen on CSI or the umpteen other cop/forensic shows on TV, but this is the one of the first times this type of content has made an appearance in a big-name Facebook game. (Before you sound the secret alarm and launch a million PTA meetings around the world -- don't. If you're under 13, you are not allowed to access to the game as per Facebook's rules and regulations.)

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If you're someone of age, like me, who has been looking for something a little more engrossing than repeatedly planting crops and collecting taxes from virtual homeowners -- Catch a Killer delivers more often than not. All of the previously mentioned mature content is all part of a series of murder mysteries which you will solve with the help of forensic psychologist and Patterson's most famous fictional character, Alex Cross.