Developers love to throw in a little Easter egg or an optional quest into their games as a little inside joke or a way to lessen the general intensity of the plot. The No Country for Old Men rendition in GTA 5 or the newspaper Easter Egg in Uncharted 3, hinting at the fungus infection in The Last of Us, are some of the most iconic 'hidden content' in gaming history. However, unlike some super popular and big titles in the industry, horror games are a bit more secretive with the secrets they hide in their playthrough.