List of Horror Games for Low Spec PC's

These are for anything above Intel 3000HD, you should be fine! Some of these will obviously work on lower ones too!
Clive Barker's Undying (such an awesome game) https://www.gog.com/game/clive_barkers_undying
Doom (original)
F.E.A.R (specs on the 2nd one and even the 3rd aren't that much either)
Five Nights at Freddy's
DOOM 3
Killing Floor
Left 4 Dead
Corpse Party
Vampire The Masquerade Bloodlines
Alien vs Predator Classic
Limbo
The Binding of Isaac
BioShock
Slender The Arrival
Higurashi (When They Cry)
S.T.A.L.K.E.R.: Shadow of Chernobyl
Return to Castle Wolfenstein
Metro 2033
Walking Dead Telltale
Amnesia: The Dark Descent
American McGee's Alice http://au.ign.com/games/american-mcgees-alice/pc-14054 (couldn't find a buy online version, there are copies on amazon or you could download it online, up to you and how you feel about that kind of thing, a fucking amazing game though, one of the best)
Silent Hill 2 http://au.ign.com/games/silent-hill-2/pc-492619 (this game literally redefined the survival horror scene)

Also Half-Life 1 and 2 have some awesome horror mods, along with being semi-horror games themselves with zombies and what not
Half-Life 1
Sven-Coop (mod) (this has a mode called 'They Hunger' which is an awesome coop horror adventure)
Half Life 2
Nightmare House 2 (mod) http://www.moddb.com/mods/nightmare-house-2 (easily the best and scariest one out there in my opinion)
Silent Hill: Alchemilla (mod) http://www.moddb.com/mods/alchemilla-mod
Underhell (mod) http://www.moddb.com/mods/underhell
No More Room in Hell (mod) http://www.moddb.com/mods/no-more-room-in-hell

Emulators also serve as good tools to play some awesome old horror games on low spec pc's
PS1 Emulator http://www.epsxe.com/
Silent Hill ROM http://coolrom.com/roms/psx/40093/Silent_Hill_%28v1.1%29.php
Resident Evil ROM http://www.emuparadise.me/Sony_Playstation_ISOs/Resident_Evil_[U]/37472
PS2 Emulator http://pcsx2.net/
Silent Hill 2 ROM http://www.emuparadise.me/Sony_Playstation_2_ISOs/Silent_Hill_2_%28USA%29_%28En,Ja%29/151232-download
Resident Evil 4 ROM http://coolrom.com/roms/ps2/41800/Resident_Evil_4.php

Implying that people have low spec computers

toplel

A great list though c:

Corpse Party is a must play. I recommend it hardcore if you like RPG themed games and visual novels, YOU CAN'T MISS IT.

Doom obviously is my favorite game of your list, i'm still playing it nowadays and even discovering new secrets everytime i doom.

You forgot Minecraft story mode, that shit is full ofjump scares

Slender?

Aiba wrote

Implying that people have low spec computers

toplel

A great list though c:

I wrote this up for someone on HF, I put a lot of effort into it and decided I wouldn't let it go to waste and post it in other places for people to see

Mavis wrote

You forgot Minecraft story mode, that shit is full ofjump scares

Slender?

Slender is in there, trust me 🙂

7 months later

An entire threadkiller in the OP, and not even one mention of Ib? Damn shame.

Sadly I only had a chance to play through the first hour or two of it, but it was still one hell of a ride. The game seems to epitomize the Japanese technique of slow-building horror that exploits human psychology to keep us constantly alert and on-edge; as if every creaking floorboard and yawning corridor warns of an incomprehensible evil out to get us.

If you're in the mood for a slow, but genuine scare, you should totes check it out: http://vgperson.com/games/ib.htm