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.

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?

The usual result of a human taking a runaway semitruck head-on is a very sudden, very fast track to the pearly gates. But for one newly noncorporeal man, there's another option: become a dungeon. Feeling sorry for the desperate angel assigned to him, the man relents. Heck, if it doesn't work out, he can always chat with Saint Peter about it later. Next thing you know, he's a dungeon. Admittedly, a small run-down, somewhat unimpressive dungeon (more of a house, actually), but you gotta start somewhere, right?

Ever since Arwin was summoned as a child, all he has known is war. And now, to claim the demon queen's life and end the war, he has to sacrifice himself. But, as he deals the final blow, the Hero of Mankind is betrayed. Caught in a magical explosion thought to end him, Arwin awakens a month later to find that everyone has already moved on. His [Hero] class has changed to a unique blacksmith Class called [The Living Forge] that is empowered by consuming magical items, but some of his old passive [Titles] remain, giving him the power to forge his new future exactly the way he wants to.

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.

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.

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.

Ten years ago, Amelia woke up alone and lost in a broken world where she had to fight for her survival. Now, after reaching the pinnacle of power, defeating the Void itself, and escaping the abyss, she has finally found her way back into the real world. But instead of returning to Earth, she arrives in the land of Vacuos. A fantasy world with magic, monsters, Classes, and Levels. A world that is governed by a System like it were a video game.

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.

Oberon Blackphoenix almost united all the races on his part of the world. It would have meant a term of peace yet unheard of. Sadly, he was betrayed by one of his most trusted advisors. With his once friend's sword piercing his chest, he cast his last spell. Unintended by even him, his spell incorporates a legendary item that results in the world being cursed. Now over a thousand years later, a certain sorcerer once again wakes...and he is not happy. Alessa has been on the run for years. Never stopping in one place for long.

I was the most powerful healer in my world—the best, having devoted my entire life to mastering the art of healing. And yet, for whatever reason, my brother feared that I sought to claim his throne, and he marshaled his forces against me.

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.

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.

Millions of dungeons inhabit the planet, utilizing the Human people as a source of much-needed Mana to facilitate their own growth; in turn, the humans delve into the dungeons to acquire their own power in the form of Essence, which allows them to develop and enhance themselves in a multitude of different ways. It is a symbiotic relationship that has lasted thousands of years and has brought about a measure of peace.