Alistair’s life is turned upside down when he is abruptly separated from his friends and family. As the universe slowly transforms and new laws take hold, everyone within his universe is cast into the trial—a crucible of survival and transformation. Before being set on his path, Alistair encounters a system avatar—a brief and enigmatic guide who offers little explanation, guidance, or aid before sending him and the rest of his universe into the unknown.

When the apocalypse strikes the world Kyle Mayhew calls home, he is thrust into a struggle for survival. Alongside his Central Health Autonomous Diagnostic Drone (C.H.A.D.D.), he will have to overcome mutated creatures, ruthless marauders, and his grandfather’s legacy to carve out a new home.

Andross Silver had a nice life... Until he was pushed off a building and found himself in a new world. Reborn into a family that wants to kill him, gifted with a System, and armed with determination, Andross must rise to the challenges of a strange new world he suddenly finds himself in. His only blessing is the Mark of the Crijik, a magical gift from a divine being that bestows great powers onto those that possess it.

Ragnarok is near and the Vikings of Midgard have failed to uphold their duty to prevent it. With time running out, the All-Father Odin himself, searches all the worlds for one last warrior who might hold back the destruction threatening Nine Realms and every world created. Magnus’s death caught the All-Father’s one good eye. As an Army Ranger, he knew he was placing himself in the line of fire every day, and knew a day could come that cost him his life. What he didn't want was the rest of his team would be wiped out with him, the worst disaster the Rangers had experienced in decades.

Bernt might have graduated from the Mage Academy, but not everyone has the money or connections to launch a prestigious career as a mage. Bernt finds himself working in the city sewers as an Underkeeper among the other rejects of Halfbridge's magery. He may spend more time unclogging pipes than fighting monsters, but hey, it's a stable job, and that's what counts. With the help of his unregistered soul-devouring demonic familiar, he'll save enough to launch his career as an adventurer—just as soon as he can afford some proper gear.

Reincarnated as the War God—he has a lot to learn to live up to that title. His power is only as good as the skill he possesses to wield it. But there is a reason the former War God fell. He can only dare to imagine what foes lie in wait. He will have to build a team out of a former shield maiden, an elven sorceress intent on hiding her power, a beautiful lycan who doesn't trust anyone and a mortal-hating fire celestial. What could be hard about that?

Raised in the slums and alleys of Helsin, Argo is tired of lurking. He is exhausted of living meal to meal and tries to elevate himself to a better life. The Rumi Guild he plans to depart, well, they decide to bury him instead of letting him escape their grip. Argo sees the trap coming, avoids the clutches of fate, and runs from everything he's ever known.

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.

Finn was living a good life as a blacksmith's apprentice, training hard to earn the right to become one of the Kingsguard, the elite force of one hundred knights that serve and protect the King. He worked hard, trained hard, and often got into trouble with his best friend, Prince Galen. The two of them had been almost inseparable since they were toddlers. For Finn, life couldn't be better. Until a force of assassins and mercenaries attacked the palace! Prince Galen and the entire royal family were murdered, along with Finn's father.

In a magical world known as ‘The Wyrd’ only those who have the Spark can be adventurers, diving into magical dungeons, getting epic loot, and leveling up by collecting essence. Caldor is several years past the age when most people find out they are sparked, but that doesn’t stop him from wishing. Caldor’s father was an adventurer and he wants nothing more than to be like him, an Arcane Knight. When his hunt goes sideways and he finds that he can harness the powers of being a Sparked, he is filled with excitement and ready to battle his way to the top!

Dace Tolman’s life has been overturned. One moment he was in his apartment and the next, he and the rest of humanity find themselves in a strange world of monsters and magic. A new world. There is nothing benign about mankind’s new home. The Proving Grounds is a world seemingly designed to enhance those worthy of its gifts—and to kill off the rest. Every day is a struggle against the System and its creatures. Can Dace survive its challenges?

Freddy Stern, a twenty-one-year-old cashier, has lived a plain, albeit harsh life. Having been orphaned—twice—he's spent the last ten years working and staying out of trouble. His only aspiration is to save enough money to become an archhuman. His dream gets the jump on him when he barely survives a near-death encounter and finds himself in possession of 1% Lifesteal, a bizarre talent with numerous contradictions and just as many uses.

In a world where runes hold unimaginable power, mere mortal and gifted artisan Nate must harness arcane magic to navigate treacherous paths, reveal the hidden truths of his own past, and discover the workings of the illusive ‘System’. No big deal. Emboldened by only his penknife and a weirdly profound understanding of runic sorcery, Nate must uncover if the path he has been thrust upon may spare his earthly existence. After all, why only leave your mark on one world… when you might leave it on two?

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!

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.

Alistair’s life is turned upside down when he is abruptly separated from his friends and family. As the universe slowly transforms and new laws take hold, everyone within his universe is cast into the trial—a crucible of survival and transformation. Before being set on his path, Alistair encounters a system avatar—a brief and enigmatic guide who offers little explanation, guidance, or aid before sending him and the rest of his universe into the unknown.

Andross Silver had a nice life... Until he was pushed off a building and found himself in a new world. Reborn into a family that wants to kill him, gifted with a System, and armed with determination, Andross must rise to the challenges of a strange new world he suddenly finds himself in. His only blessing is the Mark of the Crijik, a magical gift from a divine being that bestows great powers onto those that possess it.

Maximo Strident, war veteran and member of local law enforcement, never wanted to enter the dungeon. With promises of wealth beyond his imagination, his squad mates managed to convince him. Max isn’t a Knight, so he has no magical equipment or spells that could help him against monsters. What he does have, however, are the sword forms he learnt at the Blade Academy. These forms are formidable martial arts that make him the match of Level 0 monsters. But Level 99 monsters? He doesn’t stand a chance.

Bernt might have graduated from the Mage Academy, but not everyone has the money or connections to launch a prestigious career as a mage. Bernt finds himself working in the city sewers as an Underkeeper among the other rejects of Halfbridge's magery. He may spend more time unclogging pipes than fighting monsters, but hey, it's a stable job, and that's what counts. With the help of his unregistered soul-devouring demonic familiar, he'll save enough to launch his career as an adventurer—just as soon as he can afford some proper gear.

When the apocalypse strikes the world Kyle Mayhew calls home, he is thrust into a struggle for survival. Alongside his Central Health Autonomous Diagnostic Drone (C.H.A.D.D.), he will have to overcome mutated creatures, ruthless marauders, and his grandfather’s legacy to carve out a new home.

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.

When the System Administrators arrived on Earth, they forced those of the younger generation into other worlds to fight for multiversal entertainment. Bored of life on Earth, Noah has trained to become one of the chosen. He even had his class all planned out–a Mounted Monster Tamer. But he was never picked. So he put matters into his own hands and volunteered. Arriving in a world thick with jungle and hotter than the most boiling desert, Noah finds himself face-to-face with a kobold, which he proceeds to beat into submission and turn into a minion.

The last thing Jonathan "Tilly" Tillman remembers is the thunderous crack of a flame-engulfed building collapsing as he tried to save a little girl . . . Until a system administrator offers him a new life on Nephesh, the realm where ideals, myths, and legends clash endlessly for supremacy in the hearts of men. Carrying all the trauma and regrets of his decades-long career as a first responder, Tilly must start from scratch—without a tutorial—in a system-governed universe. To make matters worse, on day one he finds himself facing off against a cosmic force bent on corrupting the entire realm.

Somewhere faraway, the universe is in peril. But on Earth, Alan is minding his own business after a boring double-shift at the pawn shop… until he’s assaulted by a screaming archer who turns out to be a good shot. Alan awakes in Strangey Town, a zany nightmarish jungle of ideas run by a horrid deity. Things get even stranger when a clairvoyant frog confirms Alan has an affinity for magic, and that his powers are far from ordinary. He can convene with gods, bargain for souls, and tap into every known magic the universe has to offer. It's unheard of!

The System is here! Most of the population of the planet were suddenly turned into zombies, while the rest acquired new abilities. Abilities that let them run from the zombies, save themselves, hide, and try to survive. But it only takes one bite that almost always means death. Our hero was standing in line when the apocalypse came. He was lucky at first to be caught in a crowd when the zombies tried to bite him on the leg. Really lucky, because those trials unlocked new abilities for him.

The last time Matteo tried out for the Rangers, he lost an arm. In a world plagued by monstrous threats, Matteo is granted a second chance to join the elite Rangers—the monster hunters protecting the city atop a giant turtle. With the promise of wielding a powerful magical artifact, he vows to excel in boot camp and make this opportunity count. Yet, as he endures the grueling trials of the Ranger training, a dark revelation surfaces: their ranks are thinning at an alarming rate.

Dace Tolman’s life has been overturned. One moment he was in his apartment and the next, he and the rest of humanity find themselves in a strange world of monsters and magic. A new world. There is nothing benign about mankind’s new home. The Proving Grounds is a world seemingly designed to enhance those worthy of its gifts—and to kill off the rest. Every day is a struggle against the System and its creatures. Can Dace survive its challenges?

Verdan Blacke is an Imperial Wizard, a researcher by preference but soldier by necessity. Surviving an intense battle, Verdan is cursed by a hex witch in her final moments. Without any good options, Verdan escapes the ever-increasing pain the curse inflicts by performing a self-made stasis ritual.

Allen Ming awakens in an unfamiliar realm, trapped within an unfamiliar form—feeble in body and spirit. Thrust into a world of cultivation, Allen Ming finds himself grappling with a reality of a wastrel body, and a world filled with danger and killing. With an AI-enhanced eye, he seeks his way through the dark world of cultivation. But with his newfound family haunted by a looming threat, he has to take charge of the situation even before he gets familiar with the new body.

This collection contains the first three books in the Underworld series: Level Up or Die, Through the Belly of the Beast, and Sanctuary. Elorion has just finished a VR gaming session to find a monster waiting for him. With nineteen other students who have also been kidnapped, he is now subject to the whims of a thousand-year-old succubus and must survive deep under the earth in the lost realm of the Underworld. Gifted with the ability to use magic and advance in power, he is given an ultimatum: Level up or die.