Just relax, and let the game take over

This is the first time I have played a game this good. I found so lost in the game that I found myself playing for hours in one sitting. My favorite part of the game is your main objective,(Don't let anybody see you!). It is so easy to become consumed withing the game that the outside world disappears. I found myself missing phone calls, and not hearing the door when someone visited while playing this game.
Although the characters are a little stiff, the rest of the game will quickly compensate.