Nightmare Fuel: Five Nights at Freddy's

(In case you're really, really scared by now, go right down to the bottom and click the link.)

There's a few good reasons as to why this game is considered one of the scariest of 2014. Examples include...

See here for fan-work related Nightmare Fuel. See here for the sequel's page and here for the third game's page.
  • The trailer shows Bonnie moving around while the cameras are off, as well as Freddy and Bonnie removing their faces, showing their endoskeletons.
    • The trailer also shows the animatronics during the daytime performing on stage, which is unsettling for many reasons.
  • The title screen sets the mood well enough, but if you sit around, Freddy starts twitching, showing his endoskeleton, and making horrifying expressions that makes said endoskeleton look almost like fangs at first glance.
  • Anytime a robot screams in your face, especially after you lower the monitor not knowing they've entered the room while you were looking through the camera feeds.
    • Made even worse when a glitch reveals the full scream without being cut off as heard here (or here). It's a child screaming.
  • Freddy's Tune.
    • Also the breathing from the robots.
      • You wanna know the worst of it? If you hear breathing when the tablet is still up, you're pretty much dead once you lower it. Or y'know, the robots get impatient and take that liberty away from you...
  • Depending on your view, the Game Over screen can be this.
    • To elaborate, it cuts to the backstage area, with the focus being on a Freddy costume. Doesn't sound too scary, right? Well the first call with Phone Guy reveals that, if the mascots catch you, they plan to shove you into a Freddy costume, and the assorted wires and crossbeams would crush and kill you iron maiden-style. As Phone Guy puts it, "the only parts of you that would likely see the light of day again would be your eyeballs and teeth that would pop out the front of the mask". And, lo and behold, you can see that there IS a set of teeth and a pair of eyes inside the bear, both haphazardly hanging out of the "mouth" and "skull" of the Freddy costume. No guesses for who they just came from.
  • The hallucinations especially Golden Freddy, which if you don't look right back at the camera to a different room, he will kill you or crash the game.
    • Since the game is so vague on what is actually going on, Golden Freddy and all the other hallucinations could indeed be real, and really happening to Mr. Schmidt.
  • Few things will get your heart pounding more than the image of Foxy racing down the hallways and leaving you with only a split second to shut the door.
  • The Bite of '87. Someone that day lost their frontal lobe to either Freddy, or one of his friends, and survived.
  • The animatronics themselves are deep into the Uncanny Valley; even before they start stalking you there's just something inherently off about them. Their movements are jerky and unnatural and their teeth are disturbingly humanlike. It makes you wonder how they ever managed to endear themselves to children (although a summary of the game says that adults find them pretty creepy, too).
    • For some reason, the fact that their eyelids and areas around their eyes are either black or very dark is this as well. It's hard to explain, but those dark eyes and the way they're always half-lidded.
  • You can hear footsteps, shuffling sounds and noises from the Animatronics, especially Foxy sprinting up towards your station. What noise does Freddy make? Deep, low, demonic-sounding laughter. And sometimes he moves without even making the sound.
    • Setting his AI to twenty, the highest difficulty possible, on the seventh night gets you a constant stream of his laughter all night long as he crosses the pizzeria in seconds flat to get you.
    • It's worse when you really think about it. That laughter sounds more like crying laughter...
  • Watching Freddy and the others through cameras. Sometimes it'll darken or glitch out for a moment, and then they're gone. Other times they'll begin twitching horribly in place for staring at them too long. And sometimes, they'll be up close to the camera, staring directly at you. Especially Freddy.
    • Even worse when you realize that despite having relatively bright eyes, their eyes tend to become pitch-black in the dark with only the occasional shine or light source. And then they start glowing in the center.
    • Chica is by far the worst of the bunch. When she moves, she will always, always be staring at the camera with that gaping maw of hers.
    • Bonnie generally isn't that bad, almost looking rather funny in many of the security images. Except when he appears in the backstage, complete with what look like empty sockets with tiny, white pupils, and is also STARING DIRECTLY AT YOU, INCHES AWAY FROM THE CAMERA. Especially bad since this is just about the only one with eyes like that in a screenshot, and no other animatronics get up that close to the camera, which will probably lead to an unpleasant surprise while flicking through the rooms.
  • Chica's second set of teeth. They're just part of the exoskeleton, but it's still spooky.
  • The "Rules for Safety" poster has a low chance to turn into one of four newspaper articles when viewed through the cameras. They describe how no less than five children were abducted by a man in the restaurant. The bodies were never found, as they were presumably the first to be stuffed inside the 'bots.
    Poster: Police were contacted when parents reportedly noticed what appeared to be blood and mucus around the eyes and mouths of the mascots. One parent likened them to "reanimated carcasses".
    • The poster (Eating Time! Party Time! Fun Time!) in the East Hall has a similarly low chance of turning into a barely visible cartoon of three screaming faces with Ocular Gushers.
      • Even worse? That face will remind keen-eyed players of a particularly lethal, music-loving antagonist in the second game...
    • Sometimes the poster will change into the words "IT'S ME".
  • The messages from the Phone Guy get progressively more frightening as the game progresses. On Night 4, the message is cut off as the Phone Guy begins to panic with the sound of Freddy's theme in the same room as him. Cue the screech and the end of the message. It's very clear what just happened.
  • The cameras don't let you see into the kitchen, only listen to it. Occasionally you'll hear noises, like Chica eating something. But what on earth is back there?
  • Turn up the brightness enough to make out one of Freddy's posters, and you'll see that it's...this...thing.
    • Which makes an odd sort of sense when you realize that that's what happens to the poster just before it becomes the one that triggers Golden Freddy, the empty costume that kills you. But if the metal skeleton isn't in Freddy, then where... oh, dear.
  • Sometimes when Foxy leaves Pirate's Cove the sign "Sorry! Out of Order" will change to "IT'S ME"
    • Foxy's gradual emergence from the curtains is also chilling. Foxy's final position, having drawn the curtain and emerged, is particularly terrifying- Foxy's hook is raised and resting on his tilted chin in a manner that looks as if he's contemplating whether or not to charge you down.
  • Here's a question for you: With the exception of Foxy, the other mascots tend not to move in any noticeable way when you watch them, until either you've made it to the fifth night, or have been watching them for too long, at which point they start twitching. You're sitting in an isolated room with only two ways in or out, and you are watching the mascots though security cameras. All that being said, here's a question that will keep you up at night: how do they know when you're watching them? Unless there's a light that comes on when you look through the cameras, there is no way that they should be aware of your attention. Is the cupcake spying on you? Is it in league with them? After all, the backstory says that there were five children... and there are only four mascot costumes.
    • But there's a fifth animatronic endoskeleton — the one you see in the backstage area. And it knows when you're watching...
    • Actually, many security cameras do have a "tally light" that comes on when you activate them. That doesn't explain why the animatronics would notice it, though — or the empty heads and naked endoskeleton in the back room, for that matter.
    • It is also possible that the cameras only move left and right when the player has them selected.
    • Considering the table doesn't appeared to be wired to anything, yet using it drains power, it's entirely possible the cameras aren't even switched on until accessed.
  • Whenever the power runs out. The fan turns off and the entire room is dark until you turn to the left door and see Freddy's face being illuminated by a strobe light as that freakin' jingle of his is playing in the background before the power switches off entirely as he and his crew go in for the kill. If you were able to make it to at least 5 AM when this happens, you're left praying that you were able to buy enough time for the clock to turn to 6 AM before the jingle finishes. If not, kiss your hearing goodbye.
    • It's the tension that makes it worse. First time it happens, you have no clue what the hell's going on (heck, some LPers even thought they won the day). You're down to nothing but moonlighting as, it could be assumed, the small sliver of reserve power goes out. Then things go pitch black once the song finishes (or just cuts off) and you're left just waiting...and then you hear the footsteps... Of course, if you're near the 6 AM mark, you could still make it. Otherwise, Freddy will give you his definition of bear hug.
  • The Golden Freddy costume is empty: no animatronic endoskeleton. While the other anamatronics all have freaky Uncanny Valley eyes, the Golden Freddy costume having completely black, empty, soulless eyes can be even more frightening...
    • Actually, if you look closely at the eyeholes when Golden Freddy is sitting in the office, you can see two faint glowing dots... the same glowing dots that the other animatronics get when their eyes black out. While there isn't a suit inside, it doesn't mean that something else couldn't be in there. Spend too long staring into the abyss...
    • No endoskeleton also means its mouth is left hanging open. Nothing inside but pitch darkness, which only adds to the terror...
    • The entire existence of Golden Freddy is terrifying. While the animatronics all have a reason for being there, NOTHING is given about Golden Freddy. All we know is that he's a Golden version of Freddy Fazbear with no eyes and no exoskeleton, possibly a costume for an employee to wear. The animatronics can roam around at night, but Golden Freddy doesn't show up on the drawings or anywhere at all, and can't move. He can only appear if you view a mysterious changing poster that shows his face on it, and he can somehow warp into your office even if the the doors are closed. And worst of all, as typing in 1-9-8-7 on the custom night summons him and he has no exoskeleton, he's probably the one responsible for the Bite of '87 and killing the 5 kids!
    • It gets worse. Much worse. Golden Freddy appearing when the numbers are set there is since confirmed to be an in-gag for anybody who thought they were being clever. No connection to the bite, just an empty costume. ...However, think about it: we have all five kids accounted for; four costumed animatronics and one endoskeleton you occasionally see. So then, how do you explain Golden Freddy? Well, thinking on the matter...the childrens' killer did lure them in by wearing a Freddy Fazbear costume, didn't they? We know now that management makes dumb decisions to ensure profit keeps rolling in. Maybe they decided to keep the costume, despite discoloration, in case they found use for it? And maybe, just maybe...the late children didn't take too kindly to that...
    • While the "ghost" idea is still up in the air, the rest isn't. The prequel confirms that the murderer wore the Golden Freddy suit to lure in the children.
  • The game briefly implies the player character (and, by extension, the Phone Guy, and any other security guards) took the job without knowing about the killer animatronics. The implication's creepy enough for the player character, who at least has Phone Guy's phone calls to alert him, but it's safe to assume (since Phone Guy can't record messages for himself), that at least one guard has had to figure it out for themselves with no prior warning or instruction.
    • There may have been two guards once, and one died, while the other didn't... and the survivor puzzled out what had happened afterwards.
  • Whenever Bonnie or Chica manage to get near your office and you turn the lights on them, resulting in a Scare Chord. Just the way they're looking at you, getting ready to pounce (Heck, you can't even see Bonnie when you close the door on him. The only clue if he's still there is the shadow against the wall when you turn the lights on). What's more if you don't hit the doors in time or they get disabled. The only way to survive is to not look at the tablet. Once you do...
  • The fact that Freddy is the most unpredictable of the lot and keeps to the shadows most of the time when you try to track him. Plus barely any early warning when he's close to you during gameplay (Chica and Bonnie at least appear outside the guard station giving you time to close the door. And when you see the empty curtain in Pirates Cove, that's an early warning to hit the left side door to keep Foxy from getting in. The only real warning you get if Freddy's close to you is if he's staring at the camera in the East Hallway). If you try to close both doors early, he somehow manages to get in anyway. And when he does get you, its two kinds of worse. As stated above his attack when the power goes out is bad enough. But he looks far more sinister when he does it when the power is still on.
    • Hes far more scary when he attacks when the lights are on than the other animatronics. You might consider them to be somewhat derpy-looking, and even think the same of Freddy when he attacks you when the power runs out; but if the lights are on, you can see a part of his endoskeleton, and he has no eyes.
  • Phone Guy specifically says that the management does not tell new employees about the animatronics'...quirks. Could you imagine being one of the employees stuck in your security job without Phone Guy's warnings about the animatronics (or who muted his phone call, which you have the option of doing)? Watching the cameras and gradually realizing the animatronics are actually moving and headed straight toward you?
    • Expanding upon this, imagine working the night shift and suddenly seeing the animatronics move around. What would be the most logical reaction? Most people wouldn't react with horror or have their survival instincts suddenly kicking in. Most people would likely be struck with confusion and leave the office just to check what the animatronics are doing off the stage after closing hours and if there's any way of talking them into returning to the stage... The Surprisingly Sudden Death would be all but ensured...
  • The fact the animatronics can disable the cameras and light sources at all. Yeah, that's not exactly normal for bots that are simply roaming the building for the heck of it. This also leads to a rather terrifying thought Whenever they catch you, the camera fizzes out. Does that mean the robots completely disable the camera feeds so they can kill you in private?
    • Yet, most of the time, they don't disable the camera, even if they're looking right at it. It seems like they want you to know they're coming...
  • Mike's first check said, "(See you next week)". Now we all know Mike gets fired for messing with the AI in the Custom Night, but just think about if he didn't. How many weeks would he have to endure the terror of Freddy's before some kind of intervention? Who knows, perhaps he would've met the same fate as Phone Guy
  • A good point was brought up on Tumblr: the reason this game is so scary is that most horror games give you the option to fight the horror or run away, if not both. This game gives you neither. Even the whole 'shutting the doors on them' action feels more like delaying the inevitable than an actual fight.
  • The rare Bonnie death screen. It simply has to be seen to be believed.

Now if you're really scared by now, go here.