ULTRAKILL

Mirror Reaper: large husk with beige and red skin, lacks a head. It is composed of an unknown number of humanoid bodies, with their flesh fused together to form one entity. It has four arms and four legs, and the upper section of its body is curved upside-down, forming its body into a vaguely C-shaped position. Its upper left forearm is split in two. The upper section having two hands, and the lower section being devoid of flesh or skin, with a large spike or curved blade being attached, making the skeletal arm resemble a lobster or crab's pincer in the resting position. It can fold this blade out when attacking, similar to a folding knife. Its body seems to be constantly twitching and pulsating.

Filth, Strays and Schisms appear very early in Prelude, Soldiers and Corpse of King Minos in Lust, Stalkers and Sisyphean Insurrectionists in Greed, Ferryman in Wrath, Mirror Reaper in Fraud. Some Husks like Filth, Strays, Schisms, Soldiers and Stalkers appear later in all other layers of Hell. Sisyphean Insurrectionists and Ferryman also appear in other layers however it's not that often. The Corpse of King Minos and Mirror Reaper don't appear in other layers than their own.
Note: Only one Ferryman is in charge of the ship they use to transport other Husks on it, and unlike many other Husks, Ferrymans seem to have faith in God and want to redeem their sins.

Stalkers: dark grey humanoids with slim arms and legs, walk backwards, head reversed, clothed in gold-lined black cloth that hangs downward from their side, golden rings that circle around their wrists and legs. Head is covered by a hood and gas mask with yellow lenses and a long oxygen tube. Carry around a big cylindrical bomb on its "back", they trembe towards other enemies. The bomb on their back is fillied with "sand", when an enemy gets covered by it, machines cannot extract blood from them.
The Corpse of King Minos: giant dark humanoid, glowing stark-white eyes that project beams of light, wrapped from head to toe in barbed wire, which is best seen around his crown and mouth which appear to keep the massive bars of metal on his head, back, and legs, together. He attacks with his hands, punching or crushing. At half health, skeletal serpents will burst from his eyes and launch either a large homing Hell Energy projectile, or a large regular Hell Energy projectile surrounded by eight smaller ones that spread out.
Sisyphean Insurrectionist: large light-brown human-like Husk with a large cut across the body, leaving it without a head or right arm. They only wear white loincloth, below its fragmented ribcage, large teeth seem to be growing out of its open wound. Feet are soaked in blood, allowing it to travel the dunes of Greed without injury. Its left arm is stretched and clutches a deceased Malicious Face. Can create shockwaves by slamming on the ground, they use the Malicious Face as a weapon, throwing it to the target either short or long distances and also while being mid-air.

After a human dies, their soul either goes to Heaven or Hell, if they go to Hell, then they manifest into a husk. When a soul manifests into a husk, its physical form depends on the soul's strength of will and how much the soul is remembered in life.
Most of the Husks are very stupid, often aggressive and only attacking either from self-preservation or hunger, however there's exceptions, some being highly intelligent like the Ferryman.

Lesser Husks: Filth, Strays, Stalkers.
Greater Husks: Schisms, Soldiers.
Supreme Husks: The Corpse of King Minos, Sisyphean Insurrectionists, Ferrymen, Mirror Reaper.

Filth: no arms, nose, ears or eyes, have a single massive mouth with sharp teeth, green skin covered in dry blood, stupid, driven by hunger, lunge at the prey to attack.
Strays: tall, skeletal humanoids, bloody muscle and bones are exposed, seem to lack internal organs and eyes. Attack from distance with a Hell Energy projectile, stupid, easily scared.
Schisms: mutated humanoids with an irregular amount of limbs, two flimsy left arms, right arm has an energy cannon fixated onto it, skull is merged with the shoulder of this arm. They form when two humans try to manifest in the same space. They attack by shooting Hell Energy projectiles in a horizontal or vertical line from their right arm-cannon.
Soldiers: Strays but with mechanical additions like an arm cannon, a metallic mask and a mechanical leg. Their body seem whiter. Attack by kicking or shooting Hell Energy from their right arm-canon.
Ferryman: skeletal humanoid figures with blue, red or gray bones and a small, white robe covering their faces and torsos. They wear gold, ring-like artifacts around their limbs, a golden crescent moon headdress atop their heads. In combat, they also wield a large white boat oar. Able to summon lightining to attack in distance.

God wrote these Testaments.

—
TESTAMENT I

MANKIND IS A FAILURE.

FREE WILL IS A FLAW.

LET THE EVIL OF THEIR OWN LIPS CONSUME
THEM.

THEN I SHALL BEGIN AGAIN, WITH MY WORD
AS LAW.

—
TESTAMENT II

FAILURE AFTER FAILURE AFTER FAILURE
AFTER FAILURE AFTER FAILURE AFTER
FAILURE AFTER FAILURE AFTER FAILURE
AFTER FAILURE AFTER FAILURE

THE RESULTS REFUSE TO ALTER

AGAIN AND AGAIN AND AGAIN AND AGAIN AND
AGAIN AND AGAIN AND AGAIN AND AGAIN AND
AGAIN AND AGAIN AND AGAIN AND AGAIN AND
AGAIN AND AGAIN AND AGAIN AND AGAIN

MY FAITH BEGINS TO FALTER

—
TESTAMENT III

UNCOUNTABLE CYCLES OF CREATION WASTED
UNCOUNTABLE FORMULAS FOR A MIND WITHOUT
FREE WILL WASTED

DAMNED IS MAN FOR FAILING TO FOLLOW MY
RULE, MY WORD, MY LAW
DAMNED TO AN ETERNITY OF TORTURE AND
SUFFERING,
THE WAILING AND THE GNASHING OF TEETH

I HAVE CREATED HELL...

... And now I can no longer unmake it

—
TESTAMENT IV

"FATHER, WHY ETERNAL TORMENT? IS IT NOT CRUEL?
IS TORTURE UNENDING TRULY A FATE FIT FOR A FOOL?"

AN ANGEL SO BRIGHT AND BEAUTIFUL ASKED ME THIS...
AND I COULD FIND NO ANSWER
FOR I COULD NEVER FACE THE GUILT OF WHAT I'D DONE...
MY REGRET, A GNAWING CANCER

IN MY HOUR OF WEAKNESS, TERROR POSSESSED ME THEN
AND I CAST LUCIFER, TOO, INTO THE INFERNAL DEN

ONCE I REALIZED WHAT I HAD JUST DONE...
I COULD ONLY WEEP
AS I SANK SLOWLY INTO THE DEPTHS OF DESPAIR . . .
DEEP, OH SO DEEP

—
TESTAMENT V

I AM HOLLOW.

MY MISTAKES LEAVE NOTHING BUT HATE IN THEIR WAKE, AND INFINITE PAIN TO FOLLOW...

I CAN'T TAKE ANY MORE OF THIS GUILT AND REGRET, FOR ME THERE IS NO TOMORROW...

I AM HOLLOW.

...

I BEGAN TO SEEK THE END OF MY DAYS.

BUT WHEN I STARED INTO THE ABYSS...

THE ABYSS AVERTED ITS GAZE.

—
TESTAMENT VI

[NOT FOUND YET]

Prime Souls are Husks with a Will power strong enough to the point that their soul doesn't need a physical body, generating some sort of "metaphysical" form when their physical body is destroyed, Angels and Heaven in general are scared of Prime Souls as they are capable of winning against them, Husks become WAY more powerful in this form, however Prime Souls are very rare and only two Husks has been confirm to become a Prime Soul. Minos and Sisyphus.

The Kings, after being killed by Gabriel, started to form into a Prime Soul, so Heaven made prisions form them to keep them from fully forming.
Minos' prison is called the Flesh Prison, it is within his former physical body, which became larger after his death, that is now wondering the Lust Layer while being controled by parasites and destroying all he created, as a punishment.
Sisyphus' prison is called the Flesh Panopticon, unlike minos, it lays in the Heresy Layer, the place where it's located is sealed and there are many enemies guarding the place to make sure he doesn't escape.

Unlike Lust's Upraising, there's Greed's Insurrection, unlike the kind-hearted King Minos, Sisyphus had other ideas... Sisyphus, King of Greed, did not cared about talking, he'd lie, cheat and kill without remorse if it meant to saved his comrades, the values Minos had matter little to him although both kings respected each other in some way, Sisyphus made an army to go on a war against Heaven while the angels were at the brink of a Civil War after the Disappearance of God, although Sisyphus knew that his army was going to lose, Husks weren't strong enough to uphold a full-scale war against the paradise, he found joy in struggle, it the act of resistence itself, and it was also better than pushing a boulder uphill for eternity, it was batter trying to do something against Heaven than keep listening obidiently to them and expect something to change, which that wouldn't be the case, a lot of Husks felt inspired by Sisyphus and followed him without hesitation, the King of Greed didn't know why they'd follow him without thinking twice, he didn't understand why, but he was glad they fought alongside with him.
When the Holy Council came, they obviously didn't like Sisyphus' idea, so they sent Gabriel again to kill the King of Greed too, unlike Minos, he held a fight against Heaven, but the Archangel noticed that the army had major flaw, the army's morale relied on Sisyphus way too much, so he comanded an attack directed to the King and beheaded him, after that, the army quickly dissolved.
But like Minos, Sisyphus started forming into a Prime soul but at a much faster pace, so Heaven quickly had to make a prison for him.

While Heaven was in chaos because the disappearance of the Father, the Judge of Hell and King of Lust, Minos, decided to do something... He believed that souls should not be punished for loving another and being intimate with each other to show their love, so he built a whole city in the Layer of Lust so the people could live comfortable and safe, Lust's Upraising wasn't violent at all, Minos was a resonable and honorable man. However, when the Holy Council took over Heaven, they didn't like what Minos did to the Layer, seeing that he brought safety against the Father's laws, so they sent Gabriel to kill Minos, Minos tried to reason with the Archangel, yet his words fell on deaf ears, he was killed by Gabriel, every Husk (Sinner) cried as they witnessed their king being strucked down and Gabriel calling this "Justice"... However, Minos' soul remained and it was starting to form a Prime Soul, so the angels decided to imprison Minos' soul to stop it from completely formed.

Hell Itself is not only a place but en entity, it was created by the Father as a place to punish sinners that didn't follow His laws, however it seems that because of this Hell Itself is now a twisted entity, relishing on other's suffering as entertainment or torturing others, seeing violence not only as an art but as its twisted way of showing its "love", it has no empathy for these beings, it is implied that Hell Itself knows Lucifer and that it often tortures him in every way that can and cannot exist but also calls him "LUCIFER, M Y L O V E" in one of the many books it writes and leaves for maybe specific people (or mostly machines, specifically V1) to read, it writes in red and sometimes each letter is spaced and in capital letters, it also seems to be able to communicate with machines or other entities, like V1.
Hell Itself often inspires itself with the type of things Humanity did in the war, like the creation of the Gutterman, Hell took inspiration on this machine to make the Mannequins. It often tries to create life, probably to torture it, but given its twisted nature it often fails while it tries to replicate others' creations.
Hell Itself is fascinated by the Earthmovers, even writing a whole page just for them, but then it saw V1 and quickly took an interest on it giving its powerful nature to the point it even overpowered Earthmovers with ease, Hell Itself calls V1 "The Star of the Show", even encouraging it directly to keep killing husks (sinners), demons, and whatever creature the machine encounters.

IMPORTANT NOTE: Many (Husks, Angels, Prime Souls and Machines) seem to not know that Hell is not only a place but an living, breathing entity, but it seems to show that it is alive to those who pick its interest and fascination like V1 and Lucifer did.
It is not known how Hell Itself actually "looks" like as it is the layers of Hell AND an organism, but it's be probably look like some kind of fleshy entity with an eye that has two irises in one.

V1 is a humanoid machine, "V1" is displayed on the left side of its torso, its armor is blue while its joints are black, it has a small and thin complexion, although it makes it less durable, this makes it also extremely flexible and agile. V1 DOESN'T have a humanoid head, it has a long head that bears a resemblance to a CCTV security camera with one big yellow glowing optic. V1's left arm, called the Feedbacker, makes it able to parry almost any projectile and even physical attacks with it, this arm is slightly bulkier than the other. It has eight wing-like protrusions that come from behind its back, four on each side. Its wings are not able to make it fly but they greatly help its movement as they enable its aerial maneuverability, dashing, continuous gliding, and the ability to store weapons that are not in use. V1 is a Blood-Fueled machine, it has the ability to abosrb the blood through its armor and use it as healing factor, being the only machine known to be able to do this.

There's three ranks for Machines, Lesser, Greater and Supreme, V1 is a Supreme Machine.

V1's production was supposed to be in mass, but given the fact that the Final War ended when he was finished to be sent to combat, he wasn't, he's the only V model along V2. V1's purpose is to kill Earthmovers, being the last war machine made as V2 is a machine made for peace and to protect humanity.

Gabriel is an Archangel, he wears his armor most of the time, said armor is primarily white and gold, it includes golden pauldrons, gauntlets that extend to his shoulders, and greaves that reach up to his thighs, his breastplate is gold and white, likewise are his tassets and helmet, the sides of his breastplate have dangling tassels. His helmet visor is primarily white and contains a golden cross and breathing holes on the face of it. Two sheathes are present on his right hip, which is where he keeps his two swords, Justice and Splendor, Justice has a golden handle and blue blade, Splendor has a blue handle and golden blade. Gabriel has black skin with gold designs on his abdomen and lower backside. His grey loin cloth and black skirt are attached to his belt. He has translucent blue wings and a floating halo that resembles an arrowhead in shape with unreadable markings along its base.
Gabriel has the title as God's Will, he is usually respectful, honest, serious, loyal and kind but he a bit quick to anger if disrespected and mocked, Gabriel is also a bit prideful and dramatic, because he has never lost a fight against anyone or anything — or at least that was before he met V1—, while fighting he usually taunts his opponent.
Gabriel's armor becomes bright red and his wings and halo yellow when he is enraged. Gabriel can summon weapons of holy light which he uses the most, he only unleashes his two swords when he considers his opponent dangerous or worthy.
Gabriel is one— if not the most— powerful angel in Heaven and is very well-known and respected by other angels along with other Archangels, Micheal (God's Wisdom), Raphael (God's Strength), Lucifer (God's Kindness, theorized, formerly) and Phanuel (God's patience).

Gabriel is the one who was sent by the Holy Council to kill Minos and Sisyphus, however he was defeated by V1 twice, a machine that descended into Hell because it neede blood to survive.

Terminals are machines that don't have a humanoid body, it is more like some kind of advanced computer, its primary color is yellow, it has a keyboard and a pad incomporated to it, these machines were made to categorize, analyze and extract data, they need less blood than other machines that can move on their own, the Terminals, despite not baring any human resemblance in their form, do have self-awareness, though they refused to show this to humans, they had shame in communicating with other machines, they often search for such interaction actually, Terminals cannot talk, but they can generate texts on their screen for other machines to read. The Terminals are the ones that made the ranks for machines, this is because they have fun watching other machines killing enemies, often ranking them for how stylishly they kill, giving more points to those who do this, and higher rank, the Terminals like V1 a lot given to the fact that he never fails to entertain them.
The Terminals were able to create two digital worlds:
The Cybergrind is a mode where a machine's mind is translated to a digital world where they'll endlessly fight enemies they've previously fought (unless said enemies are considered "bosses"), the machine's stadistics and weapons will be the same as in real life, there will be a screen that indicates how many enemies are left to eliminate. If they are all dead, it'll start a new wave with harder enemies, the number of waves the machine has gone through will also appear on the screen.

Terminals appear to be able to form a symbiotic link to the machines it makes contact with, they also watch the machines at the Cybergrind, finding it VERY entertaining, if the machine "dies" in one of the waves, they will be intact in real life.

While the Sandbox, the machine is in some kind of "creative mode" where they can build, spawn enemies, be unkillable, etc.

Terminals run on SmileOS 2.0
Terminals share videos of machines killing other things to Hell Itself.

Lucifer is a fallen angel. He was supposedly (theorized) to have the title as God's Kindness before he was casted down to Hell, he doesn't rule that place, he's being tortured by Hell Itself in Treachery Layer.
His appearance is still unknown, but his personality can be theorized as kind, compassionate, empathetic and calm.
Lucifer didn't fell for pride, or anything of the sort, he fell because he questioned God about eternal torture and if it wasn't cruel, when He had no answer He casted the angel down.

The Long Night is a period that started at the ends of the Final War, it was caused by the pollution that the Earthmovers made, covering the sky with black clouds that didn't let the light of the sun pass through, making Earth unhabitable and also causing the Earthmovers to slowly shut down one by one because of the lack of sun that they needed to function along with Blood, this period also made Humanity stop the war because of the very poor state of the planet, starting the New Peace.

The New Peace is a period that started after the Final War and during the Long Night.
In this Period, Humanity tried to make peace with each other, working along with each other after 200 years of constant war, their state was very poor— there weren't many resources, the Supermarkats had to put posters that said to not throw things like clothing away, that they should patch it up first if its slightly broken but still usable, they also put other posters like "Don't be greedy, just take what you need and leave for the rest".
Humans also started bringing animals back to life like pigs, cows, etc so there is more food for the people.
They also tried making a new V model, V2, which unlike V1 it wasn't made for war but to protect Humanity, having a more durable armor as durability was more important in times of peace, however V2 did not reach mass production as no one wanted to buy it because no one really had the money to.
Within the New Peace, Hell was discovered by Mankind, starting the Hell Expeditions.

The Final War is a war that started by Humanity, it began in 1914.
At first, Humans fought each other but then Russia created the first Blood-Fueled Machines, the Gutterman, which was able to tear through the trenches with ease
Human soldiers were useless so they got sent back to their home, they were happy at first to see their familes and friends again but then they saw the poor state they war has left them.
After that, Germany created the Guttertank to counter the Gutterman, and the cycle continued...
Until the Earthmovers, made by Japan, were created, these machines are massive, being able to destroy cities with one blast of their spear-like weapon/arm, they are impenetrable from the outside but vulnerable from the inside, due to the size of Earthmovers, they did not only need Blood to funtion, but also needed Solar energy. Also, to be safe, many humans made cities behind the Earthmovers' backs.
So, after seeing what Earthmovers were capable of, a country (not known which but theorized to be USA), tried to make the perfect counter for the Earthmovers, the first V Model, V1, a light machine made for speed but not durability, it is small enough to fit in the Earthmover and destroy it from the inside. V1's last firmwere update was in 2112, August 2nd and it wasn't released in combat due to the war ending
The Final War ended in 2114 (200 years of its begining) because of the Long Night.

Humanity was created by the Father (God), but they died early, so He created to Tree of Life, which its fruit contained the Blood that now courses through their veins, they were allowed into Heaven at first but then the Father noticed that Mankind was becoming corrupted, even inventing "Sin", which He didn't like and tried to make them without free will to make them obey His laws, failing over and over again.

Humanity started a war in 1914, but it extended way too much because of the creation of Blood-fueled machines that fought for them, human soldiers becoming useless in the war, the battlefieled being dominated by machines instead. This period was called the Final War, which last 200 years.
The Final War only ended because of the Long Night which was caused because of the great amount of pollution some machines like the Earthmovers caused, so Humanity started to work together to not go extinct, this period is called the New Peace. They were able to bring animals back to life, such as pigs, cows, etc., but that didn't mean they weren't short on resources. The post-war situation was still very pitiful; the population was poor, and many of them died from lack of food, water, and most likely from disease.

Then they discovered Hell, and in a desperate attempt to get resources, they started the Hell Expeditions.
Not long after, Mankind went extinct, the cause is not known, maybe was because of Hell itself, the same machines they created that still needed blood to function or because of their poor state.

God (also called The Father) created the Tree of Life, which its fruit contained the perfect fuel for all living beings, a crimson liquid called "Blood", He gave it to his Angels and the Humans.
He let Humans enter in Heaven when they died. But He saw they created Sin, not pleased by it, He tried to start all over again, trying to make civilizatiosn without free will, His words now Law, He tried to make them obey, failed, He tried again, again and again, an eternal loop for Him, and in His frustration, He created Hell, and He couldn't undo it. It was something He would regret forever.
Lucifer tried to talk to the God, asking why eternal torment, if it wasn't cruel... He had no answer, in His most vulnerable, desperate moment He was questioned by one of His beautiful angels... At not finding an answer, His mind was clouded by desperation and He casted Lucifer down to the dark pits of Hell, when He realized what he had done, He knew He couldn't go back... And He just fell into more desperation, feeling hollow, He stopped answering His other Angels, or anyone's calls... And He left Heaven to never return again.
At the absence of God, Heaven became desperate, trying to get an answer from Him... But no one could. Heaven was unstable and a Civil War was about to start, but thanks to the Holy Council, a group of high-ranked angels said that they would keep answering to God's Laws, masking it as faith, saying that this was just a test from their creator (which is a lie), Heaven went back to "normal", or as normal as it could be without their beloved God to follow...
IMPORTANT NOTE: The Angels, nor the Council, don't know why God left, but maybe they know about Lucifer's fall, maybe thinking that he did something sinful or he defied God as they couldn't listened to the conversation.

Treachery; Ninth Layer: There is not a lot known about this Layer, but it is heard that is worse of all, it is a snowy place where the Husks (Sinners) are trapped beneath thick layers of ice, the worse sin they commited, the lower they are buried beneath the ice, some are completely buried beneath it from head to toe.

Fraud; Eighth Layer: A place where you cannot trust your eyes, it is like the labyrinth of Violence but worse, there's a lot of twists and turns, and not only that but the gravity somehow changes, you can be peacefully walking, and then the gravity changes making you fall on the ceiling or a wall that is now somehow the floor. This layer often tricks you, sometimes making you think you went all the way back, and then you see a whole new place.

Violence; Seventh layer: A white place, there are three circles for each types of Violence.
The First Circle: Violence against Another, this part of the cycle has two separated parts, the first part it's a labyrinth that constantly confuses anyone who passes through it, with many twists and turns; you can recognize that you were in some rooms before, but it doesn't really let you familiarize yourself with the surroundings, a sterile white predominates in this place and a bit of black, this is more of a psychological torture for those who try to get out of the Layer, their punishment, it makes them go slowly insane. Then the other part is an open space, mostly all black, but there's still the sterile white of the previous place, the Husks (Sinners) here are forced to fight each other for survivial, however after Humanity died the opem space was dominated by machines fighting other machines to get fuel from the other, battling each other to death.
The Second Circle: Violence against Oneself, the white returns yet again, the grass is light gray but this part of the Layer is very dark, in this place there are gray trees, that aren't actually trees, those are the souls who dared to take their own life— because life is a gift given from God (the Father) himself and the Heavens see doing such a thing a waste of this gift— if you get close enough, you can hear these souls turned into trees "breathe", however they cannot move, they cannot control their new "body".
Then, the third type of Violence: Violence against God, these part of the layer has black floors, and red skies, these place is for those who disrecpected and/or mocked the word of God, or if they committed blasphemy.

Heresy; Sixth Layer: A black and red place, the hallways of this layers are pure black and it is hard to see, the windows and "skies" of this place are red, and the Husks (Sinners) there are damned to live an eternity being burned alive, being locked in coffins full of lava, their screams can be heard throughout the Layer. There's also skeletons here and there, some of the floors are covered in layers of broken or burnt bones and some are even reduced to ashes. There is also church-like places here and there, the cross is also present there.

This was also the place of Gabriel and V1's second battle

Wrath; Fifth Layer: A place with a lot of water, a lot, there is ubicated the Ocean Styx— which was formely known as the River Styx, however it is has overflown because of the amount of people that has been damned to live the eternity in this place— the souls are forced to push the other to get a breath in the stormy atmosphere and with the waves constantly coming, those who end up at the bottom of the Ocean become part of the Leviathan, a giant sea serpent that is made of the souls who have gaven up or are too tired to fight anymore for another breath.
The Ferryman is there, they have a big ship where they carry the Husks (Sinners) that give them a sigle coin to get passage.

Additionally, Gabriel once saved the Ferryman. It was a long, particularly stormy day in Wrath, the Ferryman was tired of bringing Husks (sinners) into his ship, he was navigating through the Ocean Styx when a strong wave crashed against the ship, making it stumble, the Ferryman couldn't react quickly and ended up falling into the water full of sinners, but he didn't have the strength to move at the moment so he thought he was going to fall into the depth of the Ocean, but then Gabriel grabbed his arms and pulled him out of the water, taking him back to his ship. Gabriel reassured him and also said that he saw his great faith but that he should rest for now, the Ferryman is still greateful with him.

Greed; Forth Layer: A place with a burning sun, the "sand" in Greed is actually Gold, very hot Gold, to the point it can cause serious burns to whoever touches it, but luckily there are some structures, which have Egyptian similarities, where it is possible to avoid stepping into the "sand", in this Layer there are other structures, replicas of, for example: The Statue of Liberty, The Eiffel Tower, Big Ben, etc. There is also a pyramid, in which lies the former throne of Sisyphus and in a hidden door, his corpse.
The Husks (or Sinners) that have been there for long have changed their form significantly because of the hundreds of years of being forced to carry a sack of "sand" on their back to carry it more efficiently.

Gluttony; Third Layer: A place where the floors, ceiling and walls are made of flesh, there may the pools or even lakes of acid here and there, there is not a lot of things that can be said about this place other than it's rather disgusting, there's also eyes, teeth and huge bones anywhere.

Additionally, this is the place of Gabriel's and V1's first battle.

Lust; Second Layer: A place with strong winds, however Minos before getting killed by Gabriel and his soul being locked in the Flesh Prision, built a city, a safe city where those whose only sin was to be intimate with their partner. The 'skies' of this place are purple, looking like it's perpetually night. The city has a lot of buildings and structures, even skyscrapers, these buildings are made to take the strongs winds on the surface of the layer.
Everyone lived happily when the King Minos took over and reformed the layer to make a safe place for them, however he was struck down and killed by Gabriel by orders of Holy Council, now his soul is trapped within his own body, not being able to control it as it is full of parasites that took control over him and now are destroying all that he worked so hard on, the city of Lust.

Hell is divided in 9 Layers, the lower the layer, the worse the punishment is, in this entry will only be talked about Limbo, but there will be other entries about each Layer separetely.

Limbo; First Layer: This Layer is the mildest of all in comparation to the lower ones, it is a place of phychological torture, the souls who didn't commit sin but also didn't have faith in God go there, it is mostly peaceful, however all of it is fake, looking like Earth when it was full of life, there are fake trees, fake grass and flowers, fake ambience noise of birds singing and a soft theme "Clair de Lune" plays 24/7, there are some structures that are church-like and even graves in some parts of the Layer, you can see some statues too. Limbo acts as a "Fake Heaven", a silent mockery to those who couldn't reach out for the light of the Father.

Prelude was an underground mining sector, it was made by humans, this place is where they found the Gates of Hell, which started the Hell Expeditions.
However, now that Mankind is dead and the mines were abandoned, Hell Itself took over this place, being an, unofficial, Layer of Hell, the Layer Zero before descending to Limbo, which is also why it is called "Prelude" or "Mouth of Hell".
In Prelude, there is extreme high temperatures, that which is why there are verious cooling chambers either for the now extinct Humans, or the machines that were sent there for the Expeditions. Lava is often present in some parts, and some of the structures of this place had broken.