Lucky Number 66 - Star Wars Jedi Fallen Order
I kinda forgot where I got this. I think this scenario takes place right at the very beginning of Jedi: Fallen Order. Protagonist Cal Kestis is hallucinating (probably smoked or took something) and, of course, he could be crazy enough to try this door 66 times.
Actually you have to do it. I did it and as boring as it was at first, the results were amazing!
Try and let me know.
And, by the way, the idea behind this creepy voice is: it was not planned. I have sour throat and I was force to whisper. It turns out it's more creepier this way, to be in line with the scene.