bhrigu: I am mainly interested about Japanese horror games in this thread, but that should not prevent you from suggesting any other related good games. :)
So, yes, you can suggest East Asian horror too.
:)
Cool! I recommend the following:
White Day: A Labyrinth Named School An obscure Korean game that came out in the early 2000s and pioneered the gameplay that Amnesia would later popularise. It was slated for a release in the UK in 2004 but that was quetly cancelled. Luckily, you can download a fan-tanslated version
here.
There is also a pretty faithful remake, which you can find
here. Never mind the "mixed" reviews, it's pretty good, but the original gets some extra creepy vibe simply because of how unknown it is. If you're unsure about the remake, it regularly goes on 75+ discounts.
Detention I raved about this game on this forum pretty much every other day, so I'll keep it short: The best point&click adventure in recent years and one of the best stories in video games EVER! You can buy it DRM-free (& extra Steam key)
on Playism or directly on
Steam.
Clocktower (SNES) I only played the original SNES version (there is a version for Win95, but unfortunately, it uses midi music which sounds nowhere near as cool as the SNES version) and it's bloody brilliant. Perfectly captures the atmosphere of a Dario Argento horror movie and the Goblin-styled soundtrack is some of my favourite video game music ever. You can find emulated versions all over the net.
Those are my top 3 picks. There's an Indonesian game called
DreadOut which I thought was kinda meh, but you can get that
on Playism (DRM-free & Steam key) right now for just over a Dollar, for that price you might as well give it a try. Gog also has
The Coma, a Korean sidescroller somewhat reministent of White Day, but I'd stay away from that one, it's frightfully boring. Unfortunately, I wouldn't be surprised if The Coma was a test-the-waters-type release for Asian horror games and gog now refuses all Asian horror games because The Coma underperformed - which would be a shame, because The Coma is a pretty bad game, while White Day or Detention are absolutely brilliant.