yeah I agree with uneasiness in some aspects of games;
Like getting telefragged by things that move unnaturally or when something so absolutely massive loads in that it makes the game lag.

Reversed sounds also put me on edge, especially if they are distorted at all.

Sound designers are good at that kind of thing. It's a science.

Funnily enough, it's worst when sound designers aren't good at it;

I've played the coziest game to relax that for some reason had the inventory sound effects as reversed notes. Sadly kills the vibe for me, though others barely notice.

That's interesting fears! Plus that "thing"... Eeeek danger senses tingling!

Unfortunately my dumb brain is hardwired to imagine horrible worst case scenarios that likely never happen.

One constant fear for me is man-made structures in water. Pumps, pipes, grids, chains, buoys. As a child already I was scared of swimming too close to the ends of pools and above grids. It made me feel like how normal people would feel about swimming in nuclear cooling pools. Climbing onto those swimming platforms in lakes costs me some courage.

Getting shoot into space like Laika the dog? Also big unlikely fear. 😬

Tangentially, your fear is relatable and why I think the silly graphics for lethal company are actually a genius match for the game. They are uncomfortably primitive and unnatural.

Yeahh lowpoly/"bad" render graphics r perfect for horrors because nothing scares us more than our own mind
detailed monster model with billion polygons where every pimple is visible? um cool ig? okay?
lowpoly model with fucked up textures and unrecognizable body parts? 100/10 kill kill kill

That's one reason that books or audio productions are often more effective than films.

Oh dude falling out of a map, depending on the game, gives me the complete heebiejeebies—
Just falling in general tbh, like, if theres a certain amount of motion blur / some acceleration, I get vertigo like crazy and feel like -I'm- the one falling and not my playable character

Since im terrified of the ocean, combining this thalassophobia with what you're describing is what i felt when i was playing early development builds of subnautica, swimming into unfinished areas and being paralyzed with fear at times :'D

No amount of "Its just a game" helped when staring into the underwater void

I've noticed a weird one.

I can sit dangling my legs off the edge of a thousand foot granite cliff comfortably, for example, but as another example, I was on an upper floor of a skyscraper when it was just being finished and it was empty. The room I was in had floor to ceiling windows, and I found it impossible to walk right up to the window.

I decided that meant that I trust natural structures more than man made ones.

I've noticed a weird one.

I can sit dangling my legs off the edge of a thousand foot granite cliff comfortably, for example, but as another example, I was on an upper floor of a skyscraper when it was just being finished and it was empty. The room I was in had floor to ceiling windows, and I found it impossible to walk right up to the window.

I decided that meant that I trust natural structures more than man made ones.

for me it's desaturated green brown and pink colors, especially in combo. like looking through a dirty pane of glass at a baby's bedroom, or things normally nice and full of life but with their life force taken away. the color combo and arrangement can really mess with me.

dreams of falling for miles, or hiding underneath big rocks, too. but tbh caving and especially squeezing through narrow cracks in caves gives me just as much bad feelings to watch from afar or online, as actual being up high with vertigo gives me in real life.