Id Software goes back to the drawing board for this update of their original, classic game.A nameless Marine lands at a military installation on Mars to investigate the disappearance of a leading scientist. What he finds, though, is a demonic invasion of the red planet that unleashes the full forces of Hell against him.Thanks to years of technological innovation, including real-time light and shadow rendering, id Software decided to remake the original Doom as its creator originally envisioned it. The result is quite possibly the most frightening video game ever created.