The original Doom is a perfect game; I've been playing it for years. There is nothing new to say other than how captivating it is. I put it on this Christmas, and my sister and partner, who have never played it, immediately wanted to try it and then proceeded to play it for hours. Easy to get into with its simple controls, it offers a great challenge with a tight level design and fast and engaging gameplay. Doom is definitely in my top games of all time list!