In a survival horror game, how can we ensure the player fears their enemy without openly showing them how scary it is.
I'm thinking of a game where the player is pursued by a horrible monster; it's smart, deadly, and completely impossible for the player to defeat -- the only option is to escape. I'd like to harness the player's imagination to ensure the player is genuinely scared of the pursuing monster, so actually showing the monster is out -- once it's been seen the mystery is gone and the player knows what they're really facing.
Killing off the player quickly if they're caught is a simple measure to prevent a good view of the monster if they get caught, but given that what techniques are available to show that it's getting close and keep the player on their toes?
So far I know I can use audio cues, and I know I can make use of shadows -- especially if they're exaggerated and suggest varying features. Obviously the game's mechanics will also play a role, keeping the player under pressure, designing the environment to confuse, etc., but I'm trying to think of other ways to strengthen the suggestion.
Any other ideas or suggestions?