This is my personal favorite of the Metal Gear Solid series. It deviates from the traditional storyline a bit since it's set in the Southern Soviet Union in 1964. However, it's filled with lush environments, a great story, a wonderful score, and all the challenge (or lack thereof) that anyone would ever want. Sadly I became borderline addicted to this game when I first started playing it. I've beaten it at least 5 times, and I'm sure I'll be playing it more in the future. It's creative and fun, and in my opinion, one of the best video games ever.