(CNSNews.com) - "Grand Theft Auto IV," the latest in a series of successful video games, debuted last week, drawing widespread acclaim from game players and howls of outrage from parents and family advocates concerned about its violent and sexual content. The game was released Apr. 29 and was hailed by gamers for its cutting-edge graphics that place players in a realistic virtual world. Over the past 10 years, the game's producer, Britain's Rockstar Games, has sold more than 70 million copies of installments I through III. But the series has become more violent and increasingly sexualized with each new installment.