Alien Isolation, hands down.
Lived up to and exceeded my expectations. I /hate/ horror, but its more a love-hate relationship. A game really and genuinely hasn't scared me this much before. I haven't exactly played PT demo, but you know what, fuck that. The audio and sound in this game is wonderful, really setting up the atmosphere and scaring the shit out of you. The AI/Alien learns as you go along, and it is genuinely terrifying. It fits into the actual movies perception of the Alien, and is overall amazing to play. There was a bit of repetition, having to go back and forth, but the game progressively got harder using things like that, rather than just making the Alien or the Androids stronger across the board. Overall an amazing game, a must play, and a complete gem. No cheap jumpscares (It does have some jumpscares in cutscenes and you can get jumpscared by the Alien or Androids but it's more based around how you play. Its not the main way of scaring you. Read: Five Nights at Freddys.), great tension, great sound and a realistic/living up the movie depiction of the Alien.
10 out of 10.