Regan Earle was a robotics scientist that inadvertently caused the robot takeover of the world. When his last creation completes a decade-long plan to end his own life, he ends up surprised. Creation offers him a second chance to test his wits and cunning in another world. Fate, however, is fickle and Regan ends up as a Dungeon Core...with all his memories. Is the world of Murgin ready to face such a dungeon? Let's find out....

As Robia Valley recovers from the necromancer attack, Regan and Louella work to increase their strength to meet the coming challenges. In the dark, forces move to unknown means. Adventurers come from far and wide to test their strength in the rumored dungeon. Join them as they make their journey.

She wanted to be a Necromancer, but awakened as a Saint! Somehow her summoned heroes are all undead? How will the church react when their Saintess summons a skeleton in place of a mighty hero? Sofia isn’t too keen on finding out. In this world, Gods choose [Saints], and [Saints] summon [Heroes] from other worlds; everyone knows that. But Sofia had a thing for bones ever since she was a child; there’s only one [Class] she wants: [Necromancer]! When, by the whims of fate, she gets both classes at the same time, the system breaks.

To say things have changed since the battle with the demons would be an understatement. Louella is working to pick up the pieces that were seemingly held together only through the glue that was Regan. Can Louella rise to the occasion without the Regan's aid? With Lelune's followers decimated or losing faith along with the ever-ambitious Cassin finally making his presence in Celestia felt, the world is literally crashing down around her. That doesn't mean Lelune is going to lie down and let it happen. It has been a long time since the Celestials went to war. Can Murgin survive it?

When Kers is reborn as a dungeon core, he finds himself stuck in the most improbable of places: a cloud. High in the sky and far away from the usual solid resources, Kers must face the obvious question: How is a dungeon to build itself without wood or stone? Luckily, Kers has the sarcastic (and sometimes helpful) fairy Selena to help him get his bearings. Together, the pair delight in exploring Kers’ weird existence, creating novel mobs, and enticing adventures to plumb the lofty heights of his floors.

The Aether Shift. An event that changed the world forever. Unleashing untold powers onto the minds and bodies of humans on Earth. Some were chosen, against their will, to become something new. Azaria, finally allowed leave the house on her own for the first time, ends up as a Dungeon Core, however, the situation gets turned sideways during the process and she's left alone for nearly a year. Lance, an individual with a hidden past has been struggling in the changed world that is Earth. Meeting Azaria through a twist of fate, what will change with the two brought together.

Anthony has been reborn! Placed into the remarkable game-like world of Pangera. But something seems a little off... What's with these skills? Bite? Dig? Wait.... He's been reborn as a WHAT?! Follow Anthony as he attempts to adjust to his new life as an ant in his new Dungeon home. He'll have to learn how to survive, level-up, and grow both himself and his bite-sized colony into a force to be reckoned with.

Ilea likes punching things. And eating. Unfortunately, there aren’t too many career options for hungry brawlers. Instead, the plan is to quit her crappy fast-food job, go to college, and become a fully functioning member of society. Essentially—a fate worse than death.

Elaine is ripped from this world to Pallos, a land of unlimited possibilities made real by a grand system governing classes, skills, and magic. Join Elaine as she travels around Pallos, discovering all the wonders and mysteries of the world, trying to find a place where she belongs, hunting those elusive mangos, all while the ominous Dragoneye Moons watch her every move.

After more than 700 years, he was expecting a peaceful and lonely end to his long life. That, however, was not meant to be. A single choice changed his fate, and his soul was forced to live again as a dungeon. Reborn but shackled to the heart of a mountain. This old soul has lost everything - and more. In a world of gods and demons, there is no room for a weak newborn dungeon. The path may be long and dangerous, but with a soul hardier than stone and a will stronger than iron, will he be able to forge his own destiny?

Fight, survive, adapt, and rely only on yourself. That is Derek’s creed and what's got him through the System Integration on Earth. Everything changed when the System came. Cute bunnies and beautiful butterflies became savage killing machines. Then the Invaders arrived with a single goal: to obtain ownership of this new habitable planet. War has raged ever since. None of this mattered much to Derek, aside from making living a little more perilous.

If waking up in a new world isn't bad enough, Hestia starts her new life as a small, newborn dragon in a hostile forest filled with vicious monsters. With status screens obscuring her vision, her first task is to escape two hungry kobolds wanting some grilled lizard for breakfast. Equipped with fragmented memories from her past life and the gamelike mechanics of her new reality, Hestia must face trials, beasts, bosses, and more as she grows in size and power.

Zaria was just a normal woman, living a simple life—until demons burst through her door and ate her heart. Reborn from tragedy, Zaria rises from the ashes as a Core, but with a twist. A rare mutation has turned her into a Mutant Core, destined to explode unless she forms a bond with a human witch to become a Striga. Her mutation? Legs. With the power of a full dungeon compressed into a walking house that is her body, Zaria sets out on a journey to find her Striga and avoid detonation. Along the way, she battles demons, builds her dungeon, and feeds her mimic mobs.

After fulfilling the duty all Arch Necromancers are tasked with, the last thing Sylver Sezari expected was to be reborn. He was usually the one reanimating dead things, after all. How ironic. But reborn he was. And after crawling his way back into the land of the living, he finds himself in a strange land, a strange time, and with a strange floating screen in front of his new face. Either through plan or chance, he’s alive again, and planning to enjoy himself to his heart's content.

It was a day like any other when suddenly the world changed. The universe reached a threshold humanity didn’t even know existed, and it was time to finally be integrated into the vast multiverse. A place where power is the only thing anyone can truly rely on.