What impressed me about the visual novel Her Lullaby is the amount of compassion offered to different machinations and manifestations of intensely violent acts. Its horror functions in a rare way: it’s clearly and reasonably stated. No esoteria, no unknowability, no othering. This is less immediately scary than I’m used to. It’s less shocking, the way a slasher story is often framed as a natural disaster. Instead there’s a bridging of states, not a flat confrontation with fragility, but a burn up into fragility always being there.
I’m not an expert on horror games or anything, so I can only guess the origin of persistent horror is from Slender: The Eight Pages (or maybe, arguably, Ao Oni?). I can’t actually handle persistent antagonists either, especially in first person. I’ve never finished Slender, but I’ve played it a bit, sorta just to face my fears. I gotta force myself to play most horror games. Maybe I just feel a lot, maybe I’m gullible; I just get really invested and really scared. The point is to get scared, but I don’t know. It’s not exactly pleasant.
A persistent antagonist (usually randomly) spawns in and chases the player. It may chase permanently, or it may despawn after a certain point. Commonality here is how it fosters an intense vulnerability. Control and tempo of play isn’t dictated by what the player necessarily wants, it’s a matter of being in constant avoidance. Rhythm is determined by whatever chases; a player must cede control over the space, in a way that other genres or styles rarely, if ever, require someone to do.