Are old graphics like the ps1 better suited for horror games? There's something about it that is unnerving imo

>That being said, SH isn't scary.
Fucking retarded opinion.

There are a few layouts, but it's not really RNG.
Basically it's a slav horror game, with some folk elements and some otherness. The gameplay is what makes it scary.
There is a day/night cycle and you explore during the day, but must return to your base at night, because you will die at night if you're not in it. You reinforce it, use a generator, use traps, lights, etc, to defend it from creatures, and other weird events that can happen at night.
As you progress, the hideouts become much more complex.
There are also stakes, like limited lives, item loss, currency loss, etc.

But is it finishable, or is one of those where you try to survive the longest until you die?

Is Yea Forums full of pussies?

Yes. You progress through a 4 biomes, and are forced to defend increasingly more complex structures from more powerful creatures. There is a climax with multiple endings.