Scariest PC game?

Hello,

For me I feel Amnesia the first part was the one. I remember I even paused or completely exit the game just to get out of that atmoshpeher, played something chill and fun to recover then got back to play some more Amnesia. Those dark rooms and corridors mixed with lurking anomaly really did a great job, also you are not armed during the whole game meaning you cannot fight back also has a huge impact.

Please share what was your scariest PC game?