The much anticipated Grand Theft Auto 4 sold about 4 millions copies of the game on its first day of launching. Total copies sold in the first 5 day of opening went up to 6 million, grossing the gaming company Rockstar some $500 million on the first week.

The game generated an estimated revenue of $390 million on day 1, exceeding Halo 3´s $280 million launch week. Worldwide sales split 4:3 in favor of the Xbox 360 while Sony’ Playstation 3 version saw a higher attach rate.

Grand Theft Auto IV is considered the most expensive game of all time, with estimated development costs of $100 million. The game is likely to hit the 10 million units sales mark during the next months.