Distinguishing itself from previous titles, the third game in the series focuses more on an engrossing single player experience. In addition to its frenzied first-person shooter action, it also scares the wits out of players as they tremble down dark corridors filled with gruesome zombies and monsters ready to attack from the shadows. Players have to switch between their weapons and their flash light to survive the horror that Hell has unleashed on Mars. DOOM 3 features realistic physics, 6-channel surround-sound, and real-time dynamic lighting and shadows that create an environment of ever-changing fear and uncertainty. Compete in vicious multiplayer action where light, shadows, and a totally dynamic world can be used to your advantage or peril.