I didn't know what to expect from this game since it was one that my husband had picked out, but I had decided to play it one day and got attached right away. The first time I played it I wasn't very good so instead of being able to get around without being noticed I just killed everyone in my way, which you find out effects the way the game goes. The more people you kill and the more of a negative person you are affects the game during and at the end. It's not a very happy ending and your friends turn on you. Since I didn't like the ending and I liked the game so much I wasn't ready for it to be over, I played again but this time I was alot better and I thought I knew what to expect, but since I wasn't killing everyone in my way I realized there was less "infected" people, and areas of the game when I would have to run from or kill "infected" people, there was live people that I didn't have to fight with becasue they was on my side. And also the ending was a happy one. I am pretty sure later on I will go buy the game so I can play it again. It was awesone, and one of my favorite games I have ever played.