You know that bit in Alien when Dallas crawls into the ventilation system to search for the Xenomorph? There's a section in The Persistence that reminded me a little of that scene and honestly, it was one of the scariest experiences I've had in a video game so far. And I played through the entirety of Resident Evil 7 on my PSVR...
https://www.eurogamer.net/articles/2018-07-20-the-persistence-might-be-psvrs-scariest-game-yet