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.

Jason and his friends just wanted to spend a week at the lake house. Time to relax, hang out, and catch up on old times. Then the System arrived. It only took a few hours for their world to become a real-life roleplaying game; trading some downtime for the need to learn new skills and powers while trying to defend their new home, their families, and survive. They don’t know the rules. They don’t know what’s coming next. What they do know is; they need to reinforce and expand their fort while protecting it, keep leveling up, and explore a dangerous new world.

Kay's life takes an unexpected turn when he is transported to a mysterious world brimming with unfamiliar skills, classes, and a system. As he struggles to comprehend his new reality, he discovers a unique class that’s never been seen before—a powerful new form of blood magic that allows him to shape and manipulate the life force coursing through his veins. But the powers that be view Kay as a threat to their authority and dominance and are more than happy to eliminate him to maintain the status quo.

Humans have been pushed to the brink of extinction by an ever-evolving demonic threat. Portals are opening faster than ever, Towers are bursting into the skies, and Dungeons are being mined below the last safe havens of society. The demons are winning. Quest Academy stands defiantly against them as a place to train the next generation of Heroes. The Guild Association is holding the line but is in dire need of new blood and the powerful abilities they could bring to the battlefront. To be the saviors that humanity needs, they need to surpass the limits of those that came before them.

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.

As reality's grand show concludes and alien watchers abandon and reset Earth, the world dissolves into primeval chaos. Monsters roam, magic surges, and the survivors battle to reclaim their world. Humans are forced to adapt… or become extinct. But humans aren't the only players in the game. Cunning mandrills now weaponize Earth's creatures, laying waste to the remnants of humanity. Warring dinosaurs, primordial monsters, and alien beasts complete this apocalyptic free-for-all, each hungry for their next kill.

Leading astrophysicist Liam Jackson is participating in a scientist exchange program in Germany when a curveball of universal proportions is thrown at him. Planes fall from the sky, cars explode, and strange particles rain down from the heavens as monsters appear out of thin air. The laws of physics have changed in the world. The fundamental forces of the universe are behaving differently, and Liam needs to understand them if he wants to survive.

All that stands between rowdy long-haul trucker Jill MacLeod (aka Junkmouth) and her family back in Boston is two thousand miles of asphalt. Well, that and the monstrous game the System has had her playing ever since it descended on Earth. The reward: mana. Jill's goal: kill, score, drive—and stay alive. Behind the wheel of a turreted forty-ton semi named Bertha, Jill hammers east from Montana through a gauntlet of every kind of chomping, hissing, rabid creature imaginable. Barreling forward in her magical soulbound big rig and chalking up a bumper crop of roadkill, Jill isn't alone for long.

A gas station clerk at twenty-seven with no future prospects on the horizon, Mike Reynolds is a dropout with an addiction to video games and a less-than-ideal living situation. Life definitely isn't great, but could it really get much worse? When monsters appear on Earth and begin destroying the fabric holding together humanity, that thought is thrown out the window: everything is getting worse, and fast. 'Is my world becoming an MMRPG Apocalypse?' Can Mike make good on his prior experience and carve a foothold for himself as a Necromancer in this RPG world?

Silas is inducted into the System, becoming the last in a long line of Earth's "forerunners." The rewards are great, but the danger is greater. We are not alone in the universe. The fate of five worlds hangs on how their forerunners perform. Will Silas have what it takes to win Earth a place in the multiverse? Or will Earth become another mining world stripped of all resources and left a barren husk floating in the cosmos?

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?

A monster dungeon is all Thomas has ever known. After all, he was born there. Now, at age 14, he’s been solo-clearing all 100 floors of the dungeon for years. The last of his family and friends are about to die off as an eternal void beast tirelessly pursues them. Will they ever escape?

Noah Brown has a gift for fighting. Unfortunately, punching things doesn't pay the bills, at least until he died and an Eldritch god found his soul. The encounter brings him to a new world, summoned by bloody cultists. He's got nothing but the shirt on his back and a strange item in his system menu.

Sands from across the ocean blew in and covered everything in a fine dusting of granules, as they did every year. But this year they carried with them an infectious spore that infected anything that breathed. Animal or human, it showed no favorites and infected them all. If people were lucky, they retained the ability to think. If they weren’t, they became little more than monsters hungry for more spores.

The world is devolving into chaos as a game-like system has reduced the population to a series of statistics and screens. Confusion reigns as everyone struggles to survive in this new reality. Everyone but one man. Anthony Franklin has a secret. One that gives him an edge. He has lived through this exact series of events...99 times in a row.