Dr. Richter Harris is a bastard. Not because he’s the mass murdering bad father of survival horror classic D [wikipedia page], but because he truly scared the life out of me when I was 11 years old. Released originally for the 3DO in 1995, D made its way onto European and North American consoles (and MS-DOS) in 1996. I played it the following year and, having missed the original Resident Evil the first time round, D was my first proper taste of the horror genre – one that’s stayed with me ever since.
Now, some 21 years on, the late Kenji Eno’s seminal works has appeared on GOG and I think you should give it a bash.