To answer the question of the writer before it is suposed to be a 15 my copy is too, I have no idea where they got 18 from. The game is absolutely huge I couldn't believe my eyes when i saw the map. One thing that could be improved could be the radar is hard to get used too and when you are running up hills your legs go into ground about up to your knees. Over all good game. It is a mix between 007: Quantom of Solace the game and Grand theft auto IV. 5* all the way. OH! And by the way I have played it for 6 hours and have completed just 6% of the game. It is so big a game!