"You’re entering a tight corridor filled with menacing shadows. Is that breathing you hear? Well, don’t run. Clanging metal walkways and staircases always give your position away. You might be playing a first- or third-person shooter - or watching the film “Aliens.” Every science fiction/horror game of the last 20 years - from the granddaddy of them all, Id’s “Doom,” to recent titles such as Electronic Arts’ “Dead Space” series - owes a debt to the first two films in the “Alien” franchise, Ridley Scott’s moody 1979 original and James Cameron’s action-packed 1986 sequel, “Aliens.”"