Every October I generally make it a point to play a couple horror themed games, so yeah I'm curious to know if anyone else is doing the same.
Right now I'm playing through Manhunt on the PS4 (it's available as a PS2 Classic). Since most horror games usually focus on more overt supernatural threats, Manhunt is one of the few horror games that really stands out from others due to the fact there's nothing supernatural about it, you're a lone man being hunted by blood thirsty gangs who are being controlled by a corrupt former Hollywood director whose gone into make illegal snuff films for his own personal enjoyment. The soundtrack has a very "80s horror film" sound to it that's heavy in synth, the game is very dark and grimy, and some of the executions could make some people feel legitimately uncomfortable despite the aged graphics. I hear the sequel is also good if you enjoy a more psychological horror approach but personally I've yet to play it (I know an uncut PC release did get officially released by Rockstar but I just haven't gotten around to getting it myself).
After that I'm thinking of playing the Obscure games on PC. Obscure 1 and 2 are these little known survival horror games that originally came out back in the mid 00s on PS2 and PC (though I believe the second game also got a Wii release), they came out during the era when old-school survival horror with fixed camera angles and every door loading in a new area was still a thing. They pay homage to horror films where the main characters are people who are either high school seniors or college freshman having to deal with some strange crap going on around their school, and interestingly the first game even uses a licensed song by Sum 41 to really bring home said homage. The Steam PC releases are notable for actually updating the games to not only run at modern resolutions, but they also have native Xbox 360 controller support with the proper button UI prompts. If you want something with a more old school vibe that's also not a big name like Resident Evil or Alone in the Dark then this fits the bill.