History NightmareFuel / SCPFoundationSCPs300To999

* [[https://scp-wiki.wikidot.com/scp-686 SCP-686]], Infectious Lactation. It is milk contains an infection that causes mammary glands to develop in mammals, even males. If milked regularly, the disease won't advance any further. If left unchecked, however, your ''entire torso will become a gigantic udder.'' Not only that, but because you have to eat all the time to keep your metabolism up, ''you'll become nothing more than a docile animal.''

* [[https://scp-wiki.wikidot.com/scp-457 SCP-457]], Burning Man, essentially a living flame that can take the shape of a human, with only the desire to burn and grow. The added twist is that apparently, it can grow in intelligence and learn how to manipulate its surroundings.

* [[https://scp-wiki.wikidot.com/scp-973 SCP-973]], Smokey, is essentially an evil policeman who likes to chase down unlucky vehicles at high speeds with his police cruiser until overtaking them in a few minutes. Yeah sure, this SCP may not SEEM as horrifying as the other [=SCPs=] listed above, but consider that it has already killed 34 people from 19 vehicles on the highway where it has been driving, with said victims eviscerated, raped, and damaged beyond the point of identification and their cars sustaining heavy impact. Also, attempts to destroy the highways used by SCP-973 have proven ineffective, as it can simply relocate to a different road, and attempts to contain it led to the death of nine agents. And as a final little note to keep you awake at night, a post-mission interview by one of the surviving agents revealed changes in the policeman's appearance, with red eyes and a black hole where his mouth should be. No teeth, no tongue, just a hole. The territory in which it can manifest is expanding, and still with no way of containing it.

* The ''current'' [[https://scp-wiki.wikidot.com/scp-995 SCP-995]] are fungi creatures that develop more organs (like eyes, mouths, and tentacles) the longer they grow, like to live under sofas and similar furniture, and eat people. If that doesn't sound scary, they describe one instance of these beings that adapted to create sounds to lure prey, ranging from ringtones to baby cries.

** Not that the ''current'' [[https://scp-wiki.wikidot.com/scp-995 SCP-995]] isn't inoffensive either. Fungi creatures that develop more organs (like eyes, mouths, and tentacles) the longer they grow, like to live under sofas and similar furniture, and eat people. If that doesn't sound scary, they describe one instance of these beings that adapted to create sounds to lure prey, ranging from ringtones to baby cries.

** It's like ''Literature/CandleCove'' as done by a MonsterClown - except Candle Cove didn't [[BrownNote brainwash children]]. In one episode the clown just stares at you. For the entire episode. What makes it worse is that in the next episode you can tell who he's really staring at: ''The SCP Foundation''. '''''[[ItCanThink It can think.]]''''' It is a sentient, evil ''television program'' and it knows who's watching. Even its ''archived copies'' are aware. It knows the Foundation is blocking its broadcasts and ''[[VillainousBreakdown it's pissed]]''. Its copies are kept in the Foundation, so Bobble could easily learn about a memetic hazard and ''get creative...'' It already knows about certain SCPs, and how to breach containment for them. For all we know, it may have already found one.

* Not that the ''actual'' [[https://scp-wiki.wikidot.com/scp-995 SCP-995]] isn't inoffensive either. Fungi creatures that develop more organs (like eyes, mouths, and tentacles) the longer they grow, like to live under sofas and similar furniture, and eat people. If that doesn't sound scary, they describe one instance of these beings that adapted to create sounds to lure prey, ranging from ringtones to baby cries.

** The incident that led to its final, permanent capture took place at a [[UsefulNotes/FurryFandom furry convention]], in which she brutally killed and mutilated more than two dozen attendees, one of whom was served as ''dinner'' at a hotel banquet. This wasn't even the ''worst'' thing it has done, as it has a ''long'' history of committing false alarms, forced cannibalism and even ''[[ILoveTheDead necrophilia.]]'' The last of which was done to a Foundation agent's wife while he was ''[[ForcedToWatch forced to watch.]]''
** SCP-953 is so out of control that it has to be ''bribed'' into good behavior with luxury goods like plum wine as a part of "psychological conditioning" via remote-controlled robot. And considering that SCP-953 is cunning, selfish and deceptive in the extreme, it has basically tricked the Foundation into becoming its ''servants.''

** SCP-354-6. A creature resembling an Indian human male. Before he could interact with Foundation personnel, he was shot dead immediately after emerging from the pool.

* They even tried using [[https://scp-wiki.wikidot.com/scp-3922 SCP-3922]] to come up with a valid scenario that will definitely end in the death of 682. 3922 when placed close to a TV, alters any film that has a character breaking the law, changing it so that the offender is immediately and definitely killed by swat teams. They try it on a 10-minute film of 682 causing a containment breach; 3922 transforms the film into a 72-hour epic depicting a full-scale military assault on 682 that ''[[DownerEnding fails]]''. [[BolivianArmyEnding The ending has 682 laughing maniacally while being attacked by 5 gigantic ape monsters teleported in by the government, while the 1968 song "Livin' in the Sunlight, Lovin' in the Moonlight" by Tiny Tim plays in the background and an end title card that says "TO BE CONTINUED".]] There doesn't even appear to be ''any'' possible scenario wherein the goddamn thing can be killed.

* They even tried using [[https://scp-wiki.wikidot.com/scp-3922 SCP-3922]] to come up with a valid scenario that will definitely end in the death of 682. 3922 when placed close to a TV, alters any film that has a character breaking the law, changing it so that the offender is immediately and definitely killed by swat teams. They try it on a 10-minute film of 682 causing a containment breach; 3922 transforms the film into a 72-hour epic depicting a full-scale military assault on 682 that ''fails''. The ending has 682 laughing maniacally while being attacked by 5 gigantic ape monsters teleported in by the government, while the 1968 song "Livin' in the Sunlight, Lovin' in the Moonlight" by Tiny Tim plays in the background and an end title card that says "TO BE CONTINUED". There doesn't even appear to be ''any'' possible scenario wherein the goddamn thing can be killed.

* The former [[https://scpclassic.wikidot.com/scp-995 SCP-995]], Under the Couch, an object that is too mentally scarring for many to describe. At best, it's been described as an "Infinite Devil Machine." It's required to be kept in a blessed lead container full of also-blessed holy water, which turns black and darkens whatever room it's in. Recorded images of it breaking out of its container show tendrils poking out of its container. Unfortunately, it's been deleted due to negative ratings and changed to a device that drives people insane as it touches an electric conductor. Eventually, it was deleted altogether, although the original articles can still be found [[https://scpclassic.wikidot.com/scp-995 here.]] (The concept was eventually revised and revived. Behold the [[https://scp-wiki.wikidot.com/scp-1995 Infinite Devil Machine 2.0]].)

* [[https://scp-wiki.wikidot.com/scp-597 SCP-597]] The Mother of Them All is a massive ball of mammaries, nipples for every species of mammal, and no matter what the milk will always be perfect for whatever mammal's drinking it. Most mammals can't resist it. Bats, rodents, cats, dogs, all of these can be found sucking on the thing, and refuse to let go; it's described as being a sexual, psychological, and hunger compulsion all at once. The Mother also affects humans, including all the staff of its containment facility, and the psychological deterioration of the afflicted is described in vivid detail. In early stages, people who quit smoking for years have a 100% relapse rate, people binge on snacks (especially dairy products) or chew so much gum that they choke on it. Formerly heterosexual woman begin to engage in lesbian sex. Some men commit rape, and others latch onto large-breasted women as surrogate mothers. If things are allowed to progress this far, all milk samples from the Mother will be fought over by the staff. Next, staff begin to outright worship the Mother, burning incense, making food offerings (even though it doesn't eat) and sacrificing animals to it. Then they begin to revert into child-like states, losing bladder and bowel control, masturbating constantly, calling it "mommy", crawling on all fours and talking like toddlers. Finally, the staff curl up and join the other animals in suckling. The milk will keep them alive and in blissful happiness for the rest of their lives, but their muscles will atrophy and they will never let go. Even if you send the afflicted people away from the Mother, its mind-altering effects are permanent. There are several cases of staff taking their obsession home with them (one man raped and killed his own mother for "not being good enough", and that's an account that hasn't been expunged). The only thing they can do is constantly rotate and kill staff members. Even worse: The Mother ''can'' be destroyed, but the ones who have the authority to do so use the Mother as a sexual experience, ordering a Class D to pry them off after an hour of suckling. The Mother is described as being constantly covered in saliva and semen.

** [[https://scp-wiki.wikidot.com/scp-2217 SCP-2217]] set TwentyMinutesIntoTheFuture, when the Foundation is working to prevent a budding XK-class scenario due to SCP-610. They are in a coalition with the Horizon Initiative and the Global Occult Coalition... and eventually, ''the [[EnemyMine Church of the Broken God]].'' Whose different, mutually-antagonistic sects have formed an apparent truce. And in case that didn't raise the HSQ enough, in combating the threat the Foundation is willing to give up perhaps the only thing it values as much as its mission — [[BrokenMasquerade its secrecy]]. While there are quite a few SCP objects with extreme threat potential, very few have been shown pushing countermeasures to [[GodzillaThreshold this level]].