So not including the conditioned fears and phobias, there have been 5 identified universal fears.
Fear of Pain, you know you won't like how it feels, things like falling off high places and getting jabbed with needles.
Fear of Loss, the things we aquire dissapearing, the loss of a loved one.
Fear of Non-Gain for all your hard work and effort, for all the time and energy you put into something, what if you don't get what you were working for.
Fear of extinction, this feeling of death and loneliness. When you are treated like you don't exist and ignored by the people around you, the fear of death and non existance.
and the fear of uncertainty, the lack of control in your own life and of the world around you, things happening without you realising and working against you.
So if we consider these base psychological fears, how best do we design a monster to tap into these fears for a character.
time traveling puncher-stealer
many monsters that already exist fit into multiple categories.
Cthulhu technically delivers all 5 by destroying you and everything you know and love, whilst still being an unknowable being of immense unfathomable power.
I feel like body horror gets most of those. It can involve painful infections, death, invasion of the self, extinction of a species, and it typically uses the indifference of nature as a theme. So look at monsters from body horror.
>>54312813
I can see that, although, body horror is a pretty broad genrewhere fear isn't the only emotion being raised, last time I was in a Rogue Trader game where that was going on, while I had to try keeping an uncomfortable boner hidden, the other players were getting mad at an oblivious DM for injecting her fetishes into the game.