->''"I know I've said it before, but fuck this place."''
-->-- '''Miles Upshur'''

This game has a huge amount of things to be scared of. Whether it's due to seeing piles of intestines and gore, or running away from the crazed inmates, there's something here to scare everyone.

* This game's graphics provide plenty to be afraid of. The detail put into the blood and gore is good. Unfortunately, [[SceneryGorn it's a little too good at points]], to where just standing around and looking is sure to make you [[NauseaFuel queasy]].
* Many of the other inmates are [=NPCs=], that have already [[SanitySlippage gone far past the point of no return, mentally]], sitting by themselves and [[MadnessMantra whispering random gibberish]], each of them with FacialHorror all their own. What's worse? Some of them attack you. Most don't. [[ParanoiaFuel You'll never know which one's which until it's too late]].
* Early on in the game, you are met with the lovely sight of [[spoiler:a [[ILoveTheDead necrophiliac]] inmate having his way with a beheaded body]] in the form of an effective JumpScare. And, when he sees you, he calls ''you'' the sicko. Rest assured, this scene has left quite the impact on a number of players.
* One of the inmates is trying to clean another... [[{{Gorn}} in a bath tub full of blood]], [[DissonantSerenity softly whispering to him]] like a newborn baby. ''Shudder.''
* When Miles is thrown down a few floors later in the game, he lands on top of a pile of LudicrousGibs, [[OhCrap slowly coming to the realization of what he's on]].
* The huge inmate, Chris Walker, is enough to make any player scared to look around the corner. [[EstablishingCharacterMoment The first time we see him]], he calls Miles a "little pig" and throws him through a window. Getting caught by him later will likely result in Miles's head getting literally ripped off from his shoulders. [[spoiler: It makes [[AlwaysABiggerFish the Walrider's]] [[CurbStompBattle effortless killing of him]] all the more scary.]]
* ThoseTwoBadGuys, who stand naked in front of Miles, calmly talk about how they'd love to kill him slowly and take various parts of him. This doesn't become that big of a deal until [[spoiler:you have to escape from both of them]].
* The ColdBloodedTorture scene is skin-crawlingly sickening. [[spoiler:The FauxAffablyEvil Doctor Trager straps Miles to a wheelchair, teases him with a way out, then brings him into a disgusting "lab" AKA a public restroom, complete with urinals. The [[SarcasmMode good doctor]] proceeds to [[{{Fingore}} cut off a finger on each of Miles's hands]], even punching Miles to keep him from passing out. Once Trager leaves, presumably to find something else to torture Miles with, Miles manages to get himself free, only to [[VomitIndiscretionShot violently throw up immediately after.]]]]
** It becomes worse with a dash of FridgeHorror: [[spoiler:it's [[http://images.wikia.com/outlast/images/9/9e/12.png implied]] that after the fingers he was going to go for the [[GroinAttack groin]] and [[TongueTrauma tongue]] next, had Miles not escaped.]]
* Being discovered by the enemies makes things really fast and intense as it becomes a game of cat and mouse. It's scary because you have no idea where you are going, where's safe to hide, and where the items are.
* A mix of this and TearJerker. The, surprisingly comprehensible, inmate you find [[spoiler: in the burning room]] late in the game. He just sounds [[DespairEventHorizon so defeated]] as everything around him has gone to hell. Him [[spoiler: attacking you a little later in the game]] implied that he was about to lose his sanity.
* Chris Walker's [[spoiler:death.]] The player should feel relieved that he's off their back, but [[spoiler:just watching how the Walrider kills him is just as disturbing as the others. First, Walker is thrown around like a rag doll but then he's pulled into the air vent and diced up by the fan.]] And the worst part: that could have happened to Miles! In a disturbing way, this was a VillainousRescue.
* One of the rooms in the sewers is a massive underground reservoir, so large it renders the camera's IR pretty much useless. Far on the other side, you see a little speck of light. The sheer size of the reservoir is foreboding in itself, but it's not long before you hear the clinking of Chris Walker's chains. And the echos in the room make it nearly impossible to find out which direction the sound's coming from, forcing you to walk through chest-deep water towards the light and pray that he doesn't find you. [[spoiler:Walker only appears once you jump to the exit ladder, making the buildup that much worse.]]
* In one room, you find a guy in a straight jacket, gagged and blinded. He follows you. Slowly, not saying or doing anything, but no matter where you go in the room, he just FOLLOWS you. It is really unnerving.
* In the main game, the [[http://img1.wikia.nocookie.net/__cb20130921121429/outlast/images/9/90/Walllrider.jpg glimpses]] we get of the [[http://img3.wikia.nocookie.net/__cb20131209215535/outlast/images/c/c1/Walrider1.png Walrider]] are nothing short of [[http://img4.wikia.nocookie.net/__cb20131210014845/outlast/images/3/3d/Walrider2.png terrifying.]]
* The video being shown to Billy in the final part of the game. It has no sound, is in black and white, and is playing on several TV screens. It's essentially a mash-up of various bizarre images. The footage in the movie is live action, not done with game graphics, which makes it even more jarring, and all of the images are jittery. And Billy is being forced to watch it, all the time.
* Finally, the ending itself is nightmare fuel that crosses into Tearjerker territory: [[spoiler: Everything Miles suffered through meant absolutely nothing. Miles is dead, nobody will ever know the truth about Murkoff, all eyewitness testimony is silenced, the camera with the only evidence of the truth is lost forever, and now, worst of all, Walrider is free to roam the world horribly killing anyone and everyone it pleases and nobody will know where it even came from or how to stop it.]]
* Just like its predecessor, ''Whistleblower'' does not let up on the scares. Let's start off with that crazy cannibal who's bent on carving you up and roasting you in an oven.
** Your very first encounter with said cannibal is walking in on him standing naked in the kitchen and messily butchering a body, with pots of blood and severed limbs boiling on the stove beside him. When you exit the room and pass the window, you see he's using a buzz saw, has dried blood caked to his beard, and has apparently shoved his victim's head in a microwave and exploded it. Then he throws his saw at you, ''snarls'' like an enraged animal, and starts violently ripping off strips of meat from the body with his teeth.
** *saw revs up* [[OhCrap "FEED ME! FEED ME! FEED ME!"]]
* The doctor who licks your face in the beginning.
** [[SchmuckBait Want an extra dose of nightmare fuel?]] Put on some headphones for that scene. Why? [[NoYay His moaning is too low to hear otherwise.]]
** Made even more scary in the fact that, in the brief HowWeGotHere moment, the same doctor was acting quite normal towards you, even if he was a little annoyed by how late you were to the lab.
* In one hallway a guy follows you very slowly, telling you that you look so silky and he needs to tell you a secret. No thank you, I don't need any secrets please!
* When you are exploring the attic, you overhear what appears to be two people talking to each other, but you can only see one person. Later, you come across a document describing a patient named Dennis with dissociative identity disorder. Then, it hits you, [[spoiler:Dennis is the person you hear in the attic, and the other person you hear talking is really just him talking to ''himself'']]. A more subtle horror is just how dismissive the doctors are of his illness, saying he's faking it and doubting the disease even exists. [[spoiler:(Which is completely untrue considering Dennis is talking to his other personalities while completely alone)]]. And their response to his 'attention-seeking'? ''electro-shock therapy''. Then, you see his face, and it looks like its been fried...
* One of the most terrifying parts of the DLC is the Variant named Gluskin, who is dressed as a groom, thinking you're his "bride" with whom he can have his way with. He's so persistent in chasing you that he could give Chris Walker a run for his money. The most offsetting thing about him stalking you is the way he acts so calm and polite about it. Not to mention the creepy way he sings the American Quartet's "I Want a Girl"; you'll never be able to listen to that song again without thinking of him!
** [[spoiler:When he finally does capture you, you are treated to several scenes of him sawing the genitals of several other male patients, and what's worse is that he gets close to doing the same thing to you. Luckily, another inmate comes to your rescue before the saw can even touch you, but the thought of him doing that to you will make players shudder from remembering that scene with him, especially male gamers.]]
** And who could forget that SlasherSmile he gives you when you first meet him?
---> '''Gluskin''': ''Darling.''
** Before Waylon even enters the Vocational Block, Gluskin can be briefly glimpsed in an extremely unsettling moment. Just by the building is a document, very possibly written by someone on the run from Gluskin, and it simply reads ''"[[BetterToDieThanBeKilled Kill us. Burn the building]]. [[AFateWorseThanDeath Worse than death here. Kill us. Kill us]]."'' Looking through the window of the building reveals a figure (Gluskin, unknown to Waylon and the player at this point) stalking down the hallway, who suddenly stops, turns, and just ''stares'' at Waylon for a moment before resuming the chase.
** His MoodSwinger attitude is pretty terrifying as well, going from soft spoken and polite to a shouting rage on the turn of a dime.
** Before encountering Gluskin himself, you can find one of earlier wife experiments. It's a mutilated man with the head of another man sticking out of an opening in the taint, in a gruesome mimicking of childbirth. [[spoiler: Just to give the [[NauseaFuel full extent of gruesome]], that includes the man's chest has been sliced open and stuffed to resemble female mammaries, the belly sliced open and stuffed with other bits to show pregnancy, and a severed head stuffed where the nether-regions were messily removed]]. [[YouDontWantToKnow Do not]] look for an image; It's absolutely full of nope.
** Later, Waylon enters a gymnasium - the ceiling of which is covered with the hanged, mutilated corpses of Gluskin's victims, and there are ''dozens'' of them.
** In the early part of the game, you see Eddie Gluskin being forced into the Morphogenic Engine. The FridgeHorror eventually hits you - ''What kind of Walrider would Eddie have been if the experiment had worked?''
* Jeremy Blaire himself can be frightening. He may not be a deformed mental patient, but he is arguably one of the scariest enemies in the game, due to his utter indifference to the abuse and exploitation happening at Mount Massive, his willingness to do terrible things to you (and even ''kill'' you and your family) without feeling remorse and his attempts to keep you from spreading the truth about Murkoff. [[spoiler:He even tricks you into thinking he's trying to help you at the end and then tries to literally stab you in the back. He, of course, gets a gruesome but well-deserved death from the Walrider.]]
* Early in your escape attempt in the DLC, the first blocked hallway makes the player duck into an operating room. Inside the room is a large group of inmates who have killed and started dissecting a doctor. The leader invites you to join in and cut out the heart, claiming that unless he works out some aggression now, he will simply have a much more destructive blow-out later. When you make no move to participate, he starts stabbing the knife into the corpse's chest in a fit of rage and shouts at you to get out before he decides to use you as the next stress dummy. What makes it worse is that if your first instinct is to turn back to the hallway, you'll see that a new and particularly deformed patient has entered behind you and is blocking the doorway, and when you walk around to the second entrance, ''everyone'' turns to glare at your retreating figure.
* In the DLC, we get to see "The Mount Massive Slaughter" in full. ''Scary does not even begin to describe it.''
* Ever wonder why all the Variants are male, besides Mount Massive being meant primarily for male inmates? [[spoiler:As it turns out in a document in Whistleblower, the Morphogenic Engine caused at least seven of the female employees to ''[[RapeAsDrama believe they were pregnant]]'', and then miscarried about halfway through their delusional pregnancies...and in the majority of the cases ''[[YourMindMakesItReal died because of it]]''.]]
* [[spoiler: At the end of game, you get a couple of the documents that talk about the transfer of three patients: 14306-8, 14279-1, and 14868-1. Why is that so frightening? Because apparently they are referred as [[YourMindMakesItReal 'lucid dreamers']] and they make Billy Hope look like a ''partial success''. If that means what [[FridgeHorror it sounds like it means]] and considering [[FaceMonsterTurn Miles' survival as the new Walrider]], [[FromBadToWorse then things]] [[SerialEscalation are about to get]] [[ThisIsGonnaSuck a lot scarier]].]]