[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/leviathan_49.jpg]]
[[caption-width-right:350:BeCarefulWhatYouWishFor...]]

Is there nightmare fuel in this game? HELL...FREAKIN'...YES!

* In the in-game universe, sorcerers suffer from a horrific deformation in their right arms known as 'the blight'. Often times, it manifests as horribly burned skinned or spiky growths. In worse cases, the blight manifests as several eyeballs or two lovers intertwined in each other.
* Most of the spells you cast are pretty horrific, in that you actually use parts of your own body as weapons, or sacrifice parts of your body. Examples include shooting out bullets of your own blood at the cost of your health, or gouging out one of your eyes to summon a swarm of laser firing eyeballs.
* The Chalice that acts as the catalyst for many of the events in the game.
** First off, it has the power to grant peoples' wishes, but at a terrible price, resulting in the user being transformed into a hideous monster.
** Many of the locations in the game are a result of the user's wish as well. Apparently, if you're not specific about your wish, it has the potential of warping entire landscapes.
** When you finally see the Chalice at the end, it seems to be made out of human bones.
** If all that stuff wasn't enough, take into consideration the fact that the only reason the chalice exists at all is to be a cosmic plaything for an [[GodIsEvil evil god]].
*** Then ''Delta'' adds onto this: [[spoiler:If someone attempts to destroy the Chalice? They face said god's wrath, with a high probability of the desecrator dying impaled. ''Whoops, messed that one up, Similia!'']]
* The world itself falls under this, considering it's filled with monsters, mutated animals, dangerously warped landscapes, and an all-powerful chalice that can alter reality.... And this is before Magusar caused the end of the world.
* The sorcerer's job is to hunt down archfiends, defeat them, and to sacrifice them. Bear in mind that the 'monsters' are actually people who have been transformed into monsters, and judging from the sacrifice animation, it is a rather painful-looking process. Even after the person is sacrificed, they aren't exactly destroyed. The soul of the person actually remains in the sorcerer's right arm... still conscious... and unless someone you care about is sacrificed as well, you're pretty much there on your own. Basically, it's '{{and I must scream}}' taken to a whole new level.
** It gets even worse from the sorcerer's perspective. Every time a sorcerer sacrifices someone, they gain that person's memories. Eventually, the built up memories and souls overtake the sorcerer, ultimately transforming him into a monster. And even though you can save former monsters, this eventually earns you the wrath of hired assassins.
*** Also, the saved monsters have a risk to turn back into what they were.
* The Archfiends... oh geez, [[HumanoidAbomination the]] ''[[EldritchAbomination Arch]][[AnimalisticAbomination fiends.]]''
** First up is the Cerberus. Before he became a monster, he was a guardsman who got too enthusiastic about his job, refusing to let anyone in or out of the town he was guarding, despite the fact that there was a deadly plague killing the people off. Eventually, it got to the point where the people were so desperate to get out, they literally stabbed the guard in the back. Of course, the guard was visited by the Chalice and was brought back to life, for the right sacrifice. So what does he do: he sends out his hunting dogs to brutally maul the townspeople to death.
*** The cerberus' current form isn't just your typical three-headed hellhound, either. He still has the spear that killed him sticking out of his chest.
*** Even before he became a monster, he was nightmare fuel to his own people. Imagine being one of those people. You're trapped in a village by a lunatic guardsman who was once looked upon as a hero. Then one day, a plague sweeps killing hundreds of people, and even more people are being killed off by the guardsman at the gate, all because he's too deep in denial to realize what's going on. Pretty much explains why they tried to kill him in the first place.
** The Ogre was originally a chef for a king. Apparently, the king always wanted something new to eat for every meal, even threatening to execute the chef if he wasn't satisfied. Eventually, it got to the point where the chef actually cut out her own tongue to make into soup.
*** Even more horrifying was the fact that the king wanted more of the soup after he had finished.
** Then there's the leprechauns. Harmless enough, right? WRONG! The leprechauns were originally triplets who were going to become cobblers. In order to impress their father, each brother tried to make the greatest shoes they could. They found that leather made from smarter animals made better shoes, and what animal was smarter than humans. So the three brothers were visited by the chalice; at which point, they actually sacrificed each other to make the greatest shoes ever.
** The iron maiden was once a simple woman who fell in love with a wounded knight. In order to win his love, the chalice gave the woman the power of healing. How, exactly? By spilling her blood (which was given healing properties). And to make sure the knight was healed, she spilled enough blood to fill three barrels... three large barrels. She presents this to the knight, but her appearance freaks him out so much he dies on the spot. And guess what happens afterwards? '''[[spoiler:HER HEAD FALLS OFF from the sheer amount of blood she spilled.]]'''
** The incubus was originally a starving artist who gained the ability to paint his dreams from the chalice. What this entails is him actually taking his brush, stabbing it into his head, and pulling his dreams out. Eventually, he decided that best way for his patrons to experience his art is to transform his own body into a canvas and absorbing people into himself. The result: he became a potato sack-bodied creature with a canvas for a face that has the ability to spew lewd paintings to attack you.
*** The way the lore describes how his patrons line up to partake in his art and how they never come back out. Basically, these people are shelling out money to be absorbed into their deaths.
** The behemoth used to be a spoiled brat who was constantly fed apples. Eventually, his parents decided it was better to dump him in the woods to spare themselves from his constant hunger. On the brink of starvation, the boy was visited by the chalice. The chalice granted his last request (just one more apple) in the most horrific way imaginable. More specifically, creating an apple tree out of bones...from his back...and forcing his actual body to soak up water from the dirt.
*** If you look closely at the apples themselves, you can actually see mouths growing on them. Made even creepier that the behemoth actually eats these apples.
** One of the monsters is known as the jack-o-lantern. Cute, right. No! The jack-o-lantern is the remains of soldiers whose will to fight (plus latent sorcery) caused their souls to rip themselves from their physical bodies and merged with their armor and weapons. The result is a hulking monster made from molten armor with a glowing core and rocket propelled arms whose only drive in life is to constantly fight with everything that moves.
*** Even more horrifying is the fact that the jack-o-lanterns are one of the few monsters that weren't created through the chalice. Just pure fighting spirit and sorcery. Apparently, you don't even need the chalice's influence to become a monster, just pure desire.
** The slimes are the more disgusting monsters in the game, resembling hideous, misshapen mounds of gold or flesh.
*** The lore gives a rather detailed description of the transformation into a slime. What happens is that the person making the wish is liquified into viscous soup of flesh and guts. Soon the soup is reformed into a hideous mass, depending on the person's desires. There's also the implication that there is a type of slime for all the sins, and we only see two of them. The creepiest part is the fact that at the end of the lore, it actually warns you to beware of your own desires. Meaning: no one is safe from becoming a slime, not even you.
*** In the storyline, two lovers were transformed into slimes by Illecebra. The man was simply transformed by her. The woman on the other had actually transformed because Illecebra told her that her lover was sacrificed. In both cases, the chalice had nothing to do with this.
** Beelzebub was once a duke who was so damn lazy, he never did an honest day's work in his life. Even after he lost his fortune and his servants, he just sat on his throne and slowly withered away from starvation. On the brink of death, the duke was visited by the chalice and wished for servants. He got his wish in the form of flies that did everything for him. The only downside: he ended up looking like something out of a fantasy version of "The Fly".
*** The flies don't even look like normal flies anymore. They look like strange little insect demons with sharp little teeth. And one of Beelzebub's attacks is to send a swarm of these things to kill you.
** Cinderella's story has her being unable to attend the ball because of her sisters, but there's no fairy godmother in this story, so what does Cinderella do? Why, simply ''poison her sisters and steal their identities.'' And that's not even getting into what she does after the chalice appears to her, where she goes and ''rips off the legs'' of any pretty lady she sees. And the reason behind all this? She just wants the prince to acknowledge her legs.
*** There's something really gross about how the prince is portrayed as a creepy foot fetishist, especially when he's licking her toes, with [[{{Squick}} audible slurping sounds.]]
** The Elven Queen may not seem terrifying at first, then you read her lore. According to the lore, the woman who would become the elven queen ended up in a valley filled with dandelions. The chalice granted her wish of having children by transforming the dandelion fluff into elves. This might not sound like much, but then you find out how she ended up in the valley in the first place: she was running away after having attempted to kidnap someone's kid all because she couldn't have any of her own. Even after her transformation, she still wants more children of her own.
** Odin. It all started with Persapius the First's thirst for knowledge, which escalated into a desire of becoming a god. When he couldn't absorb any more knowledge? He turned his body parts into ''other brains'' and fused himself with his horse Sleipnir. Then, not long after, he got repelled from the land, at great cost of sorcerer life, sorcerers who used to have ''him'' as their leader. And when you confront and defeat him yourself? You don't get to sacrifice or save him. He just disappears into a cloud of book pages. [[WeWillMeetAgain Sure, that means you pushed him further away and that he may come back,]] [[FridgeHorror but that only means just how close he is to his goal of omnipotence and omniscience. There's a reason why his debut trailer called him ''the foulest of fiends'']].
** Bahamut. Not because of what he looks like, necessarily, but of what he can do: up against a [[ThatOneBoss particularly nasty]] Archfiend? [[FromBadToWorse Well, here comes a Bahamut out of friggin' nowhere to give it backup!]] [[ParanoiaFuel And there's no way to know when one of them will decide to ambush you.]]
** Leviathan. Want an EstablishingCharacterMoment? Try an Establishing Game Moment, as mid-tutorial this titanic thing rises from the water, turns around, and you find yourself looking at a human face mounted on this creature's forehead, with wide, staring, almost pitiful eyes. Barring Dragon Magusar, it is without a doubt the biggest Archfiend in the game. The lore behind it, of course, is absolutely terrifying as well.
** The minotaur was once the bastard daughter of a duke who was kept in a labyrinth to hide his infidelity, forcing her to wear a mask. The girl managed to escape, but when she found her mother, she had been driven mad by the duke's wife. The chalice appeared and granted her wish for revenge, horribly fusing her face to the mask and transforming her mother into an ax. The lore doesn't go into detail about what she did to the duke and the duchess. All we know was that it was brutal.
** The harpy was once an overweight noblewoman who fell in love with a local fruit merchant. Everyday, she would go down to the man's stand and purchase his fruit; all just to see him. One day, when she arrived, she found that the merchant had packed up and moved to another town. Heartbroken, the woman was visited by the chalice. As part of her wish, the fat in her body transformed into giant wings which carried her to the merchant. Unfortunately, when she arrived, she found out that the merchant was married. At first, she was heartbroken, but for some reason, she saw the merchant the same way as the fruit: as food. So she devoured him, his wife, and their property. Then a hole opened up on her stomach, spewing out everything she ate. As a result, she's now an enormous bird thing with an unending appetite.
** The Pegasus was once a royal adviser who tried to overthrow his king in a revolution. Unfortunately, the coup failed and the adviser found himself being chased by the king's guards. The adviser found himself at an abandoned farm covered in wax wings (more on that later). Having heard that these wings granted anyone the power of flight, the adviser tried to steal a pair, only to be excruciatingly melted down into a puddle of horse tallow.
*** To make matters worse, before he completely melted, the adviser was bit by a fly, and as a result of the wings' magic, he was reformed as a hideous horse-fly hybrid.
** The dwarves were once a trio of out-of-work miners who spent all their time sitting around and drinking themselves into a drunken stupor. However, when they finally ran out of money, the three were left dying of thirst. In their final hours, the chalice granted their wish for one last drink by turning their sweat into mead. The miners were happy at first, wearing barrels to collect their mead sweat. Eventually, after consuming large amounts of this sweaty booze, the miners began to not only stop sweating, but they were also fused to their barrels. Desperate for more drink, the dwarves began hunting people down, shoving them into their barrels, and fermenting them into wine.
** The Dullahan was a masochistic knight who often ordered his troops to beat him just to satisfy his sick pleasure. Eventually, his troops were so disturbed by all of this, they left him, leaving him and high and dry. Soon he was visited by the chalice, which granted his wish of the ultimate pain, by causing his body to cut off his own head. He remained alive through the chalice's magic, and realized too late that what he truly wanted was to experience death. Unable to kill himself, he wanders the land, searching for a warrior strong enough to destroy him; all while wielding his maniacally grinning head as a mace.
*** Even before he became a monster, the knight was already a nightmare by weaponizing masochism. He could win fights by letting his opponents beat him and reveling in the pain, which would inevitably disturb his opponent so much, they'd give up out of fear and disgust.
** The troll was once [[MilesGloriosus a shamed knight]] who would brag about slaying a giant monster that was capable of regenerating from any wound and capable of wiping a city flat. This tale scared off any challengers who might come along. Unfortunately, one challenger wasn't so easily intimidated, and slashed the knight across his back. As he was dying, the chalice appeared before the knight. Wishing only for people to believe his lies once more, the chalice granted his wish by summoning the monster... from his back wound. Needless to say, the monster lived up to the hype, destroying the entire village they were in.
*** And unlike most archfiends, the knight is only the carrier of the monster, not the monster itself. Meaning, we have a normal-looking human forever enslaved to carry around this giant, tumorous monster around on his back, all because he couldn't keep his mouth shut.
** The basilisk was once a blind young man who was constantly sick. Wanting to see him happy, his parents found an insecure young woman who fell in love with the boy (mainly because he couldn't see how plain she was). As time went on, the boy was not only getting healthier, but was also regaining his sight. However, his health took a turn for the worse one day, leaving him at death's door. As he was dying, his love admitted to poisoning him, because she thought that if he saw how plain she was, he would leave her. The chalice appeared before the boy and offered the gift of sight, for a price. In a fit of rage, he sacrificed his lover, transforming into a multi-eyed lizard demon, with enormous eyestalks and a single eye in its chest.
*** And the first thing he saw was his lover writhing in death... and this brought him great joy.
* In the main story line for ''Delta'', Grimmm and Avalon are playing important roles while Sanctuarium is left out. What was happening in Sanctuarium you ask? [[spoiler: Well let's just say that after the leader, Sympatha, exiled Aegrus out of an argument, she lost almost all of her members when they succumb to despair, turning themselves into Archfiends as they slaughter one and another to bloody shreds. It doesn't help that Sympatha is nearly touching the DespairEventHorizon while she watches the horrific carnage and one of the monsters tried to kill her. This is also a TearJerker because imagine being an AllLovingHero who believes in the good in others, only to be greeted with the sight of your beloved friends turning into monsters out of despair and chaos. [[BigDamnHeroes Thankfully]], Aegrus comes back to rescue Sympatha and battle the monsters, and the duo begin to rebuild Sanctuarium with more potential followers who are seeking help.]]