well yes it was silent hil 2. And if you don't want to call them zombies just call them monsters then.

And to the point where I played it to it was indeed just a repetitive game where all you do is find your way through a building and kill 'monsters' in each room. Now if there were some story scenarios then I could see it being scary. But I have a hard time viewing a video game as being scary because the room I am in looks creepy.