Despite the fact that Ive been playing games for pretty much all of my life (a Sega Master System was placed in front of me at the age of three years old) theres only a rare few which I consider to be some of the greatest games ever made. For me its not necessarily whether or not a game is polished or critically acclaimed, but often if theyve simply have had an emotional or personal impact on me - be it for what they represented at the time or the advances they made for the industry. One such game is Half Life 2 Valves ground-breaking epic which redefined first person shooters and introduced gamers to complex physics puzzles and truly immersive storytelling. Its a game which I hold very dearly and had an immense effect on me when I played it on PC back in 2004. To this day it remains one of the few games which Ill go back to play in its entirety every couple of years. However, as a recent article on What Culture pointed out, not everyone feels that way. Thats fine of course - everyone has their own tastes when it comes to games, and theres valid criticisms to be made about Half Life 2, so its not my intention to poo-poo anyone. Instead this is merely a different opinion from someone who does feel that Valves critically acclaimed first person shooter lives up to its reputation as one of the greatest games ever made. Without further adieu, here are 10 reasons why Half Life 2 is still a masterpiece.