So I am creating a horror game, and some of the mechanics for horror come easily and make sense for me, but some are less obvious. My biggest problem is telling a story through horror, and giving the player a legitimate reason to fear. I don't necessarily want it to be the kind of game where you run from a monster and hope it doesn't kill you, I played a game a while back by Betheseda called The Call of Cthulhu (the original one) and it had some very interesting horror mechanics, for example your character itself could be driven insane and kill themselves. This was a nice mechanic since it forced the player to not witness too much horror at any given time, and gave them a sense of fear for dying. So essentially, I need advice on what to do to instill fear of death into the player, without making it some cheesy rehash of a monster chasing you. As well I have no intention of adding a combat system or any enemies. My entire game takes place in an apartment and a medium-sized asylum. There IS a monster and I wrote an entire story for the game, however I didn't necessarily want the player to realize the monster is REAL until later in the game. So far my only solution is a heart-rate system that increases fear levels based on events and things you see, I thought about making it so the player could have a heart attack and die if the fear was too much, but that also seems kind of lame. Any advice his appreciated!