This 3-in-1 audiobook box set includes books one through three of the Integrated Universe series, a fantasy LitRPG adventure set in a post-apocalyptic Earth with plenty of monster and dungeon diving. This collection includes King Maker, King of the Mountain, and King of the Continent.

The entire population of the world that you were born into suddenly transported to another planet, along with the rest of the intelligent inhabitants of the Milky Way Galaxy. A strange System talking to you about abilities and levels without a care for your opinions. Thousands of monster spawning dungeons placed around the new world without a care for the new inhabitants. And if those weren't bad enough, a forced invitation for one thousand random individuals to compete in a livestreamed competition within a dungeon with the rank of Administrator as the prize.

Me? I was an innocent bystander in a shootout between mobsters and spawned monsters. Thankfully, the System granted me the power to bring forth monsters from the void. With this ability to command magical beasts, I might just live out the apocalypse. Together with a ragtag group of survivors, we're wading through the mayhem while searching for somewhere safe. Somewhere that monsters aren't desperately trying to kill us, where the opportunistic among humanity aren't looking for easy XP.

Thrust into a new world filled with monsters and magic, Will's life has become a war for survival. He has nothing more than a class called “soldier” and a strange leveling System he’s never seen before. When he stumbles across a dying stranger, a mysterious questline activates. Now Will must head to the front lines where humanity wages war against a ruthless Goblin Horde. There he will join the standing Kadian Army and forge his name from the fires of legend.

As humanity is taking its final breath, facing extinction from a myriad of monsters, the last three people on earth are creating a final chance for the hero to go back in time and stop the apocalypse. However, before the hero can enter the chronomancer portal to the past, she and the portal's creator are both killed, leaving only the weak assistant to carry on their dream of saving the world. Will Nick be able to right the wrongs done to him, and prepare the hero for the world to come?

The heroes Terry Fairway once idolized have turned against him, hunting him down at every turn. His grandfather, the ruthless S-ranked necromancer who rules the city, watches from his throne as the people starve and suffer. Vampires stalk the streets unchecked, feeding on the innocent without fear of reprisal. Terry always believed his family were the good guys, but Wichita isn't a city of heroes or villains—it's a city of power. And if power is all that matters, then power is what Terry will seize.

Benny White had been having a rough couple of years, and the approaching apocalypse wasn’t exactly helping. Pulled from the point of death and thrust into a horde-mode-style survival game, Benny’s odds weren’t looking too great. To make matters worse, an eldritch god… entity… thing named ‘Dave’ tasked him with destroying the very System that now controls his fate. But hey, it's not all bad news. Benny’s experience as a lab tech grants him a rare Splicer Class that lets him repurpose the genetic material of slain enemies into augments for himself.

Lucas was shocked when he awoke to find the world had ended. An alien AI called the System had taken over Earth and transformed his apartment building into a 100-floor dungeon tower of traps, monsters, and loot. Trapped at the top, Lucas and the other residents have just one year to reach the ground floor and escape before the tower self-destructs. That’s his first problem. The second is he slept through the System’s welcome orientation, so a Class was picked for him. Lucas is now a Blood Reaver. A brutal Class based on speed, ferocity, and striking from the shadows.

In an instant, life as it was known is gone, replaced by a System called The Connection. It doesn't come quietly as earthquakes rock the planet, the chosen survivors falling unconscious as the Connection takes their bodies and Adapts them. Lochlan Brady and his family were on their way home from a camping weekend when the Connection appears. He awakens with a new Adapted body, finding his wife missing. Now Loch must survive and thrive in this new world with his two teenage daughters, Harper and Piper. All Loch wants to do is protect his daughters and find his wife.

The Dungeon is a place of magic and mystery, a vast branching, underground labyrinth that has changed the world and the people who dare to enter its depths. Those who brave its challenges are rewarded with wealth, fame, and powerful classes that set them apart from the rest. Ken was determined to follow the footsteps of his family and become one of the greatest adventurers the world has ever known. He knows that the only way to do that is to get into one of the esteemed Dungeon colleges, where the most promising young adventurers gather.

Isaac Thoma lived to see the last handful of survivors defeat the demonic champion. He is now alone, his past in ashes, the last and most powerful human on a blighted Earth. But what if he could go back? Hurled back in time, Isaac has one chance to change it all. A chance to warn humanity of their impending doom. A chance to stop the [System] before shortsightedness and lust for power can render humanity extinct.

I was a Hunter, and I honored the Code. For my services to humanity and for leading a "proper" life, I was to be rewarded. A new life after death, and a new world to give me some well-deserved rest. But something went wrong. Once again, I must fight. The Monsters that face me here are far more terrifying than those of my past life. They are cleverer, crueler, more unpredictable. And their name is.

When Mason wakes up naked and alone in a whole new world, everything changes. Lying there with blades of blue grass stabbing him in his ass, he has no idea just how chaotic his life is about to become. His new world is crammed full of monsters, magic, and worse. But first things first. He's arrived buck-naked in a strange land—should he pick a weapon or clothes first?

Five years in the prime of his life, wasted. And now finally, after so long, he was returning to society, ready to resume his life. And this time he wouldn't make the same mistakes. This time, he would do it right. Yet just as he was about to gain his freedom...everything changed. He found himself in a new world without explanation, a world of magic and possibilities beyond his wildest dreams. Orc, elf, ogre…hundreds of possible races. Blacksmith, fighter, rogue…thousands of possible classes. And each of them with tens of thousands of possible skills.

Giant fireblasts tear across the earth as the Gates of Hell are ripped open. In an instant, billions are killed. Human technology becomes utterly worthless in the face of the end of the world. Fortunately for Jaco, he barely survives the opening act of the Apocalypse. Unfortunately for him, he has to live through what comes next. Those who died in the initial blast are reincarnated as undead monsters. Massive fiery pits swallow up the center of every major city across the world.