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.

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.

Syl was given a choice by Gramps when they died. Reincarnate as a regular person or embark on a daring experiment. Driven by a desire to honor Gramps and a sense of adventure, Syl chose the latter... only to awaken as a lowly slime. A farmed slime. The life of a farmed slime was cruel. Syl was constantly at the mercy of humans, a slime whose only purpose was to eat and recycle garbage. The threat of lethal core-destroying knives wielded by innocent children was a constant shadow. This was not the life Syl had envisioned. So, they made a daring escape to the wilderness!

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.

Zac was alone in the middle of the forest when the world changed... The whole planet was introduced to the multiverse by an unfeeling System... or God. A universe where an endless number of races and civilizations fought for power and dominion. Zac finds himself stuck in the wilderness surrounded by deadly beasts, demons, and worse. Alone, lost and without answers, he must find the means to survive and get stronger in this new cut-throat reality.

Somewhere in the toxic Bone Pits, where mechanical nightmares roam, an emaciated and wounded young wolf clings to life. Wracked with pain, driven by instinct, it crawls across the subterranean landscape, avoiding the unnatural horrors that dwell there and seeking sustenance while fending off rats, insects, and other vermin stalking it as prey.

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.

Instead of moving on to the afterlife, Watkins wakes up as something different. He has been reborn as the core of a war-ravaged starship and must work to repair his vessel if he wants to find his way home. Threats to his new existence abound, both in the darkness of space, and lurking aboard the ruined hulk of the ship he now commands. Despite the danger, Captain Watkins has a lifetime of naval service experience to call upon. With the help of his system adjunct, they must rebuild and prepare their vessel for the battles to come.

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?

Growing stronger has brought its own challenges as Silas is more of a target than ever. Worse, the Earth and its allies become targets too. Decisions have been made and obligations accrued. The threats exist at many levels, but the one that must be dealt with first is one that doesn't seem to have any agenda but raw destruction. Silas must walk his own path and create a new way if he wants a future that diverges from the horrors he has been shown.

Nathaniel's bus ride was supposed to be just another boring commute. Wrong. Now, he, 23 fellow passengers, and a corgi named Biscuit, are stuck in a "Hell Difficulty" Tutorial, battling monsters and leveling up to survive. Easy difficulty, anyone can handle. Normal difficulty, you've got to put up a fight to get by. Hard difficulty is where only the tough ones last. And Hell? That's where you have to be a bit out of your mind! With his terrifying talent for mana manipulation, Nathaniel decides to invest every stat point into mana.

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.

Alexandra Rousseau, an engineer from the European Federation Star Navy with a past darker than the void between the stars, is unexpectedly launched into hyperspace when an FTL jump goes horribly wrong. She wakes in a world of magic and monsters, encountering a mysterious Order with plans millennia in the making. When the Order makes a catastrophic mistake, transforming Alexandra into a dungeon core, they inadvertently give her the power to bring back technology long since thought lost in this world.

After thousands of people suddenly vanish from Earth, former gymnast Jade Callian finds herself thrust into an endless dungeon filled with magic, monsters, and far too few instructions. When Jade receives a mortal wound soon after her arrival in this new world, she is forced to pick a new race that has the power to save her. There's just one problem: Her only choice is to turn into a succubus.