I am currently trying to complete GTA San Andreas (I know, I know, I'm running very late with this
). I've completed around 39% of the game and boy oh boy what a game it is! It's just in a class of its own. You can very literally do what you want. Swim, fly, eat or just dilly-dally around. And the missions are awesome too. Just one little thing: Flying planes in the game is probably the toughest bit. I am stuck with the Learn To Fly missions right now and can't find a way out!