What would have happened if Saitama had gotten into Yggdrasil? And not just in canon, but before the main events. Player discord, developer despair, and the complete destruction of the world. and that's just a small part of it.

After conquering a hollow Earth, Boros roams the galaxy, his unmatched growing power breeding only boredom. Years of crushing civilizations leave him longing for a worthy foe. However his search finds him and his forces in the New World, where he finds Ainz Ooal Gown and Nazarick. Will the Sorcerer King and his Guardians be the ones to finally end Boros's eternal boredom?

Saitama was taken to a strange land against his will, and now it is his mission to confront a supreme being? Discover the outcome of this new story

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".

Based on Boku No Overlord by PaulyThide. The Empress of Nazarick and her guardians find themselves in a world full of powerful individuals called heroes and villains. There Galadriel will choose if she wants to be a hero or a villain. But things go to a different direction when a bald hero from another dimension arrived and make things difficult for her.

Momonga is now in the world of One Punch Man will he become a Hero like his friend touch me? or will he be a monster and cause havoc? can he survive? Read and find out

What If Ainz gets sent to the world of One punch man? Will he become a hero or will he become the god-level Threat Satiama wishes to fight? Read to find out! (I do not own the cover image ) [Discontinued]

Ainz Ooal Gown was busy finding another player, he finally got his wish, but its not what he expects and this person then teaches him the good and evil of things and he guides Ainz and makes him no what it means to be strong, this person helps Ainz not as a human but as a monster, whose existence doesn't belong to anyone.

In where, Miyamoto Tomoe, the notorious lone-wolf solo player that has been playing for years decided to join the notorious guild that consist all Heteromorphic races such as herself, the Guild of "Ainz Ooal Gown". Only to found herself in a similar, yet slightly different world. What could possibly go wrong, when she have the body of her Avatar! [On Hiatus]

After his battle against Saitama, Garou is teleported to a new world mysteriously. What will be his interaction with this new world? How will Garou contribute to events in the world? Well, these were questions that had to be answered.

A short crossover with Saitama from One Punch Man in the Overlord universe. Not an upcoming book author or even a manga reader, just a writer for fun.

In the battle against Lord Boros, Saitama was sent to the moon. He tried to jump back to Earth, but he may have placed too much strength behind his legs as he sped past the speed of light breaking the law of physics, entering another dimension, and landed on another planet.

Saitama is teleported to the New World, and the only equipment he has is his hair, and his nerfed powers. Now, while looking for some way to go back to City Z with his hair, he must fight against many enemies, and maybe he'll feel again. REWRITE.

King introduced Saitama to a recently released game called YGGDRASIL. He said it would cure his boredom, so he decided to give it a try. "Huh? What happened? Was that a bug or something?"