Ainz has PTSD from Aqua while Shadow accidentally achieved immortality. Both thrown into different worlds where they must master each other's skills. Shadow now the final Boss, and Ainz close to finaly achieve a somewhat normal mob life... kinda.

after a certain Overlord found himself in an unfamiliar world after the shutdown of Yggdrasil, he decided that not dying would be good for the future, so with newfound mastery over the primeval force that is almost extinct in this new world, the Eclipse of all life tries his best to survive and thrive in the world of Remnant. However, many are not content to just leave him be.

Man gets SI'd into the body of a baby in the year 2100. Turns out he's on Earth, but not just any Earth, Overlord's Earth, a dying planet. With Yggdrasil's release impending, Kakuei knows what he needs to do. Become a player, grow strong, and wait for the game to end. Except things don't always go as planned.

The world Star King Dragon Veldanava created was supposed to get a small unassuming slime with great potential. However, fate seems to be whimsical sometimes and gave the unprepared world a vast dungeon full of beings, both wondrous and terrible. Nazarick, knowingly or not, is bound to reshape the very foundations of the world.

Ainz in the FGO! Will it be a challenge for him? (Spoiler: No). No roflstomp, no hate, no bashing. Just the pure Ainz magnificence in play. It's actually a FGO-fic, but since there are plenty of FGO-fics in the Fate-general category - it was made like this.

The leader of the famous guild, Ainz Ooal Gown is now reborn in another world. Now, born as the daughter of king Robert Baratheon, and princess of the Seven Kingdoms, she must play the Game of Thrones in order to survive. Or perhaps, she could just toy with them. After all, what could that word do, to Demon Empress? (OC/Fem Momonga) (Gender Bender)

El dios tzeetch viendo en el velo de realidades vio la magia de ydrassil , el como el dios de la magia y el cambio quizo su magia asi que trajo al nuevo mundo del mundo de overlord pero perdio un poco la conexion con el al traerlo por subestimar la magia de ydrassil

Many kids dream of becoming sports stars. Others about becoming heroes or super-rich. Harry's dream is superior. He wishes to become a floor guardian of the Great Tomb of Nazarick.

The New World and Remnant were just a sea away from each other. What would happen to the habitants of Remnant? Would the peace of the Supreme Being reach them? Would they get the carrot or the stick?

A world blessed by the gods, and cursed at the same time. A land filled with magic and mystery. But when two worlds meet, conflict would be unavoidable. And from that conflict an angel would rise as the Overlord. OP Ainz.

In a Medieval Fantasy world, what is the classic response for a Theocracy when threatened by a Demon King? Ask the gods to send them a Hero? This is what happens to Watanabe Haruko, 16-year-old Japanese reincarnated as her MMORPG character, the half-elf Miriel. Except she has to fight Ainz Ooal Gown... for the sake of the xenophobe's Slane Theocracy.

Over 50 years have gone by for Ainz Ooal Gown. He has destroyed kingdoms, killed millions, and is in the process of conquering the entire continent. Still alone, he moves forward. Until a chance to reunite with his comrades appears, that made him lose everything he had left. What will Ainz do to return home? Overlord x Rising of the Shield Hero. No OCs. No Nazarick.

The world of Fairy Tail is on the bring of changing, a mysterious person and a Guild from nowhere just arrive. What will be the destiny of the world?

The Sorcerer kingdom was founded 800 years ago. In these 800 years, they have dominated the New World. It is now called the Sorcerous Empire. A lot has changed in eight hundred years. The New World is called now Nazar. A strange structure suddenly appeared in a city located on the planet Nazar.

No spoilers just read. because summary will just spoil it but in short it will be a multi crossover that's all

Nazarick arrives at the Wizarding World. The leader of the Great Tomb Of Nazarick decides to take part in the school life of Hogwarts without knowing her presence would disrupt years of planning. From both sides. Dumbledore and Voldemort have no idea what they are dealing with. They are for a rude awakening.

A series of one-shot stories about Harry Potter and Overlord (Anime) would contain my (OC), and some would contain Ainz. These stories are ideas, not in necessary order, but one would become a full-length story—different topics and ideas. If you have a suggestion, tell me!

Dos mundo completamente diferentes. Uno que es regido por una sociedad de humanos con superpoderes, donde los héroes son algo común, donde existen hombres y mujeres con todo tipo de superpoderes. Mientras que el otro mundo, es un lugar donde miles de especies inteligentes conviven en paz y armonía, un mundo donde la magia es algo de la vida cotidiana.

Al momento de su transportacion, hubo una interferencia y con Momonga fuera de Nazarick, termino en un mundo diferente lleno de angeles, demonios, hadas, gigantes y quien sabe que otras cosas, en un mundo desconocido y lleno de peligros termino como acompañante de una princesa que tenia el objetivo de encontrar a unos caballeros legendarios.

Momonga and Nazarick were transported in the DxD instead of the New World - and hilarity, lewdness - and also gore, psychological tortures and moments of unparalleled geniusness that ensued. That's just it.

This is basically ainz in opm, bunch of misunderstandings and a few deaths lead them to believe ainz is the legendary big bad that has awakened. But out of them all, the hardest battle for him will be up against the strongest and luckiest man alive. Who will prevail, King's Luck or Ainz's "intellect".

Left in a new world with hardly an explanation for his arrival, the only thing left for him to do was to keep walking forward one step at a time for those watching behind him.

In an age where love and peace are non-existent, in a land where men never knew true love and affection, it takes one action to start it anew and bring peace and love to the world. And probably lots and lots of debauchery along with it. (Overlord with MGE elements and Mamono)

Player [Libelle Theldred Aquanis] expected to be forcefully ejected from YGGDRASIL after the countdown ended. Instead, she finds herself in a land called Fodlan where magic is real and her old body long gone, replaced by her avatar. A land where her guildmate and friend [Sothis] is worshipped as a Goddess. Crossposted on AO3 under windsoflegend.

An artifact appears in E-Libera, inside the territory controlled by Marquis Satoru, just a few months after the nobles purge carried out by this last one. Unknown troops attack through this gate like structure. What will the Marquis do? How will the Crown respond to this unwarranted attack? And, most importantly, what will the Witch decide? (Special for TWTS' 3rd Anniversary)