10. Slender
While this one didn't receive any official marketing or promotional campaigns which hyped the game up, it was the community which really made this game out to be the scariest thing which has graced the gaming platforms. What we got was uninteresting. Most of the hype came from Let's Players on YouTube and people playing it through live streams. Who always jumped the moment this mannequin in a suit stood behind them and menacingly did nothing as they went around collecting pieces of paper. Oh yeah, this game is terrifying for those of you scared of suits. Slendermans' back story and general history, most of which is fabricated to coincide with the wave of 'Slendermania', is creepy and listening to some of the old stories from remote villages which seem to link to Slenderman can be quite chilling, but for all the hype and "OMG this game is terrifying," the game we got it just wasn't worth it. If you're really terrified of Slendy then just boot up Gmod and load yourself in a Slenderman model and fling him around a few times, maybe attatch him to a train or two. Trust me, you'll lose your fear quicker then a Let's Player in Slendermans wood loses his self-respect.