"I'd sum up the single player game simply as the best purely visceral first person shooter that I've ever played. That is to say, the game focuses on fear, action, and atmosphere, much like the original DOOM games. Look at the game from this more abstract view, and I think that despite all the gameplay differences from its predecessors, you'll find that DOOM 3 really does stay true to the franchise's name. The game also lasts longer than most FPS games out today; twenty to twenty-five hours is about right for the first play-through. Then there's the higher difficulty modes as well."