In 2008 the creators of Half life, Portal, Counter-Strike, and Team Fortress came out with the video game Left 4 Dead that has achieved a game of the year award. Valve has developed a new sequel following the successful game called Left 4 Dead 2, which has also promised to have a new and improved Director. The new AI Director 2.0 always gives the player a challenge by matching your performance and giving a different game experience every time you play. So no matter if you are a beginner or a pro there is always going to be a challenge that suites you.