Ahhh Phantasmagoria. I first played this game as a teenager, and it was awesome. I remember spending many nights playing this, waking everyone up every time I yelped because I was startled over something (and it happened a LOT).
As for the technical aspects, this was one of the first games I played with full motion video. It's obviously green-screened and can be slow at times with all the video transitions, but the story is one of the best I've seen in a horror game. Warning though, if you don't like gore, use the censor filter. THERE IS A LOT of it.
All in all great game. Thanks GoG!