I really liked how the developer incorporated actual scientific studies of the paranormal effects of low-frequency sound in the game. It makes the playing experience grounded in reality more than if it were just a few jump scares, which this game would've been at its core. Even though the low-frequency sound heard in the game didn't affect me at all, I can see how it would put anyone on edge during gameplay. It can give off that "edge of your seat" feeling, the feeling of knowing some threat will come soon. The hidden notes are a great touch in the game's replayability. The concept of finding hidden objects and messages in games for replayability isn't new, but it's not often used in indie horror games. Usually, indie developers rely on having different endings to entice gamers to replay their game more than once. The survey at the end was also a nice touch.