The subtle horror of the entire thing is amazing. You're unsettled from the second you start the game, and when the first bomb drops you realize what's actually happening, and not only the bizarreness of the situation but also the scary nature. The knocking on the door only adds to this, lasting just long enough, as the person across the table from you grabs your hand and smiles, and you're filled with a bittersweet feeling. The game isn't what matters here, but it is fun, it's the story that it tells. Really amazing.