After discovering an exceedingly powerful sinner, Charlie makes a decision to invite him to the Hotel. A friendly demeanor and a genuine drive to help? What could go wrong? But… Vaggie doesn't seem to agree. And it doesn't help that the sinner has quite the dark side, one he's more than willing the let loose as he sees fit...

Helluva Boss is a team of well-known assassins, but the new assignment they took on was to lead them to meet the true master of his profession, John Wick, what will be the end of this great clash, where the darkness is penetrated by something more, something that will shake up two worlds.

Octavia Goetia, daughter of Stolas, is chosen to take part in a game that will decide the fate of both humanity and the world itself. Alongside her cousin Ren and her new friends, Octavia must become a Phantom Thief, changing the hearts of the wicked to save the world. (A crossover between Persona 5 Royal and Helluva Boss) [Cover art my me!]

Angel Dust is to mentor a newcomer to Valentino's studio. What he didn't expect was to get so attached to the little imp. Adult themes. Read at your own risk. Trigger warning! If you can handle Hazbin Hotel's fourth episode, you should be able to handle this story. Platonic MagDust (Friendship between my OC and Angel) Prequel to 'Helluva Sister'

A white hellhound named Antauri lived in the living world and being treated badly by the kids his age along with his foster father. But things changes when the three imps killed the foster father and took him in to raise him as their own. How will he react of his new life in Hell? Warning: Strong Language and Violence!

after a satanic ritual Harry Potter is killed as a baby and reborn as a hellhound watch as he becomes one of the most powerful residents in hell. Also Dumbledore Weasley and Snape bashing

What if Stolas divorced Stella way before he decided to have an affair? What if Octavia had Blitz as a second parent? What if Stolas and Blitz adopted Loona before she was a teen? What if Alastor caught feelings for Angel Dust? All this and more.

Due to a mishap after their deaths, two of five souls that expired are sent to Hell. Though it is not as what it was seemed, as the world is similar to Earth in some ways. A certain hotel is this only group's sanctuary from a yearly heaven extermination, and will help out the Princess of Hell to show redemption isn't impossible. Rated M for Mature.. much like the shows (AU)

Caring little about the Imp in his hand, the Iron Revenant nonetheless saw potential in him that he can use for his own gains. Nothing more. Nothing else. At least that's what he's telling himself, but a certain six-winged woman says otherwise. In the meantime, a certain bird emperor was establishing a bond with a demonic bird, who finally find what she desires. An actual parent.

Lincoln Loud meets a cool girl from the depths of Hell, who is really a Hellhound named Loona. He slowly becomes friends with Loona she slowly begins to like him in return. Yes, a new kind of friendship erupts from these two as they spend time together, and Lincoln makes new friends and enemies along the way Loud house goes to Nickelodeon Helluva Boss goes to Vivziepop

When Fate brings two sad souls together. One, a jaded hellhound. One, a social outcast. Love blossoms upon first meeting at the end of a beer bottle. NarutoXLoonaXVerosika If you want to skip to Naruto in Hell, Start at chapter 11. Naruto-Helluva Boss-Hazbin Hotel story

The Watcher: Time. Space. Reality. It's more than a linear path. It's a prism of endless possibility, where a single choice can branch out into infinite realities, creating Alternate Worlds from the ones you know. I am the Watcher. I am your guide Through these vast new realities. Follow me and ponder the question... "What if?"

On Earth, Kiryu's mother knew he would accomplish great things as he grew up. But how could he do so in Hell? Can he seek redemption? What new friends will he make along the way? What new enemies and foes will he have to face? Quick warning btw to those who might be triggered by heavy themes such as gore, sexual assault, drug abuse, alcoholism, and death.

During a cleanse, Octavia is saved by a human trapped in hell mortality wounded, he's brought to her father to rest and recuperate. thankful he saves the humans live via a special ritual. now, as a unique vampire, he is recommended a job at a certain Imp based company as an intermediate Murder Professional, taking revenge on behalf of the deceased (First Fanfic leave reviews)

An abused young Wizard and a lonely abused Hellhound meet and save each other from being killed. They both had a family legacy unknown to them. They both meet at the age of 13 and become Soulbonded. Neither hadn't even experienced love before but can grow stronger together and face the trials ahead.

Linka Loud dies and falls to hell from her, her sinner form is that of an IMP, Blitz finds her and adopts her, another Loud house / Helluva boss crossover.

Linka Loud muere y cae al infierno su forma pecadora es la de un IMP, Blitz la encuentra y la adopta, otro crossover Loud house/Helluva boss.

In an alternate history of the early 1920's known as the Scarverse, the White Army has won the Russian Civil War and the Mongol Empire has been restored. Forces from beyond the thin veil between worlds shape the fate of mankind. And now that the Apocalypse approaches, a former President of the United States and the Princess of Hell join forces against the High Tyranny of Heaven...

A new crossover List of Episodes between canon and non-canon(Sonic the Hedgehog(Game/Comic/Series) x Helluva Boss/Hazbin Hotel)

Denied true rest, the Hunter finds herself in Hell. Will she find redemption there, leave her terrible past behind and connect to the denizens of hell? Or will she merely bring the Hunt with her, transforming hell into a familiar blood-soaked nightmare? No one escapes the attention of the Great Ones. (Hazbin Hotel included)

While force on a trip to Pentagram City by her dad, Loona's day completely changes when she meets and befriends the infamous Cherri Bomb. But as the two continue to meet, it isn't long before Loona begins to develop feelings for the wild sinner. Can she keep the flames under control despite her fears and insecurities? Or will they consume her 'til there's nothing but ashes?

Alastor also known as The radio demon, one of hell’s overlords known to be sadistic and ruthless. The only thing he cares about is his entertainment and pleasure… but is that really all there is?

Moxxie didn't like the person he was or where he came from. Despite being an Imp, despite it being hell, despite all the circumstances and bad choices, he really wanted some... form of out. But after an Extermination night gone chaotic, another fateful day, everything starts coming to a head. All while he's working two jobs and trying to make a living in the land of the damned.

The Demiurge has revealed himself, and declared a vendetta against God. Hell is in turmoil as Lucifer - now with a mere imp as his Proxy - is surely planning a new war against Heaven, to reclaim the throne he calls his own. And those who are stuck on the battlefield have to find a way to survive. This is a story of how good men die. Book 2 of The Silent God Duology.

After an unexpected Night Lincoln ends up with one Helluva new Pet which sets off a chain reaction of insanity, fun and all sorts of weirdness. (Lemon heavy story Hazbin Hotel elements will be added in later)