In the Prime Kingdoms, the system dominates everything. It dictates one’s strength, skills, and power. It spawns dungeons and guides the actions of their monsters. But every system has its limits, and it’s about to push four oddball adventurers to theirs.

As a monster, Shrubley is forbidden from joining the adventurers guild. In a world where essence artists rank up in power and most monsters are feral beasts, Shrubley is among the weakest of creatures and is treated as an outcast. With curiosity essence bound to his spirit, Shrubley might be weak, but he's intelligent and determined. Against all the odds, he discovers a loophole from the Druid that gave him life—but there's a deadly catch. For a chance of ever being accepted as a true adventurer, he must challenge an otherworldly realm threatening to consume everything.

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.

After Lucas dies during a freak explosion, divine intervention sees him brought back to life with the power to control a new dungeon. There are just a couple of issues: his old body is bound to his dungeon, and the craziness of what he thought was his final act is only getting weirder. When he sees newbie adventurers entering his dungeon, though, he decides to help them survive and complete their quests. After all, adventuring is a process, and someone needs to guide the rookies.

When an accident kicks Sean Lawrence forward in time, he finds himself square in the apocalyptic end-times. The world is doomed, and he only has a mysterious guidebook, a leather jacket, and a homemade knife to keep him company. He could spend his days grinding low-level mobs, gathering rat pelts, and waiting for a chance to escape. Or he could rise up, slay dragons, and fight against the odds. Faced with a choice between the dead-end life he's been living and the possibility of greatness, Sean has to decide if he's willing to risk his life and more for a chance to save Earth itself.

Spot was summoned from his comfortable charging pad and familiar floors to a world of magic and intrigue. But after the flight of his new patrons, he is left alone to care for a filthy castle. During his quest to keep this new home clean, Spot will face demons, foreign armies, and his arch nemesis, the dreaded stairs. All those who stand before him will be swept away. Those who follow his spotless trail will find enlightenment, purity, and a world on its knees.

Jason Lee came to New York City to see the sights. But his plans quickly change when the Apocalypse Protocol is initiated. Rifts open across the Earth, unleashing hordes of monsters upon humanity. But gateways to dungeons also appear and, with them, opportunity. Finally, there's a system announcement: some individuals will be bestowed with powers and abilities to combat the monsters and protect their fellow humans.

The Worldwalkers of legend are beings touched by Fate and transported from another realm, tasked with a grand destiny. Traditionally, they prevent great cataclysms or the fall of empires. Whatever their undertaking, their appearance brings about momentous change. It’s been some two hundred years since the last Great Game, but the time has come again. Seven are chosen, and the game begins once more . . .

Nathan's life was defined by labs and lectures until an Archmage yanked him into Davrar and made him a tantalizing offer: master magic in exchange for Earth's scientific secrets. Yet, Nathan can't shake off the feeling that darker truths lurk beneath such promises. The world of Davrar is a dangerous place teeming with dungeons and monsters–ruled by levels, Talents, and a near-infinite progression of power. Nathan will need to rely on himself to survive, forging alliances and taking every advantage he can get against those that seek to control him.

After close brush with death, Garrett realizes that he’s in a new world. And worse, he’s missing an arm and paralyzed from the waist down. A fact that doesn’t deter the brutal gang lord whose floor he’s crashing on from wanting to throw him out into the street. The only thing standing between Garrett and a cold death at the mercy of the city’s scavengers are his own wits and a plucky young woman. Armed with a system that gives him experience for exploring his new world, Garrett is determined to do whatever it takes to keep himself safe from the threats closing in all around him.

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?

There is no weapon more powerful than the [Psychokinetic] mind. Astrid, a mischievous noble teen, long dreamed of exploring the ancient cities preserved beneath the waves, left behind from a time before the ocean swallowed the world. She's been training all her life to become a magic swordsman capable of doing just that. But when an ancient monster long thought dead assaults humanity's last bastion–a floating ship-city–she awakens her System early.

Trevor Anderson is just another normal, overworked retail worker. All he wants is his promised promotion, a chance to use some of his vacation days without feeling guilty about it, and time for his hobbies. While waiting patiently for his life to improve, a workplace accident changes everything for Trevor, including the world he resides in. After he bungles his way through a summoner’s questionnaire and gains the Power of an extradimensional inventory, he lands in the peaceful town of Tosa.

Hiral is the Everfail, the weakest person on the flying island of Fallen Reach. He trains harder than any warrior. Studies longer than any scholar. But all his people are born with magic powered by the sun, flowing through tattoos on their bodies. Despite having enormous energy within, Hiral is the only one who can’t channel it; his hard work is worth nothing. Until it isn’t. In a moment of danger, Hiral unlocks an achievement with a special instruction: Access a Dungeon to receive a Class-Specific Reward.

Max wanted to be a [Baker]. Settle down, bake stuff, and enjoy life. The gods, however, ruined that dream. Given [Baker] and a rare black skill, he is now running for his life, trying to grow strong enough to return home. Now, Max must find a way to grow strong enough to survive the people and the god hunting him.

In the Prime Kingdoms, the system dominates everything. It dictates one’s strength, skills, and power. It spawns dungeons and guides the actions of their monsters. But every system has its limits, and it’s about to push four oddball adventurers to theirs.

When Alice Verianna went to sleep, she was just another teen from the Denver suburbs. She definitely didn't expect to be transported to a magical alternate dimension, inhabited by monsters and presided over by a mysterious System. Here, people resemble RPG characters and everyone has access to their own status screens. Grappling with the mechanics of the elusive System isn't the only challenge Alice faces. It seems an underground organization known as the Society of Starry Eyes has taken a particular interest in other dimensions.

James thought he would be just another adventurer in the world’s most anticipated dungeon delving VRMMORPG. But when he logs in, he soon finds out that he won’t be diving the dungeon - he will be creating it. Pretty awesome right? At least that was what he thought when he boldly chose "Random" as his dungeon type....

Kai of the Sorcerer's Tower was one of the last Mages left, barely surviving in a world contaminated with dead mana and ruled by creatures of the dark. To save his world and fulfill his master's last wish, he puts himself through a forbidden ritual, risking his soul being ripped into pieces to make his way into the past, to a golden era with abundant mana. But things go wrong. He overshoots and finds himself in an ancient time thousands of years earlier, within the body of a young lord named Arzan.

Earth was chosen for Integration, but Ethan Hill knows from the second his Trial begins that the Integration is a lie. The beings giving Earth the 'honor' of access to their System Interface want something from Earth—he just doesn't know what. Now he's trapped on an alien planet and lost in a time loop, fighting for strength and for his own humanity. One thing's for sure: He'll die as many times as it takes to tear it all down.

When it comes to action and adventure, every hero needs a good sidekick. Holmes has Watson, Batman has Robin, and Daniel has . . . Orrin. More like brothers than friends, they always have each other's backs. And as Daniel is the big, strong, handsome type, Orrin is more than happy to remain in his shadow at school, at parties, pretty much everywhere. Then things take a turn for the truly weird when a terrible accident catapults the pair into a world totally unlike their own, in which the rules of a role-playing game hold sway.

After Lucas dies during a freak explosion, divine intervention sees him brought back to life with the power to control a new dungeon. There are just a couple of issues: his old body is bound to his dungeon, and the craziness of what he thought was his final act is only getting weirder. When he sees newbie adventurers entering his dungeon, though, he decides to help them survive and complete their quests. After all, adventuring is a process, and someone needs to guide the rookies.

Becoming a knockoff Dracula in tight leather pants was never part of Vincent’s plans. Neither was being summoned to another world by a cult of vampire wannabes. But both happened. Now, Vincent’s left to pick up the tattered pieces of his humanity as he tries to grow strong enough to keep his family safe. The world is filled with nightmares, and the looming threat of losing his soul stands between his goal and his reality, so it’s not like it will be too hard or anything. Hell should tremble. A good man is going to war.

As a monster, Shrubley is forbidden from joining the adventurers guild. In a world where essence artists rank up in power and most monsters are feral beasts, Shrubley is among the weakest of creatures and is treated as an outcast. With curiosity essence bound to his spirit, Shrubley might be weak, but he's intelligent and determined. Against all the odds, he discovers a loophole from the Druid that gave him life—but there's a deadly catch. For a chance of ever being accepted as a true adventurer, he must challenge an otherworldly realm threatening to consume everything.

After being killed by a high-velocity tree-hug, Arlo is transported to a new world where those brave and talented enough to conquer ancient Delves are rewarded with incredible power and abilities. Unfortunately for Arlo, there is no tutorial. He is immediately forced to tackle a Delve set to the highest difficulty with a party of adventurers who are not only strangers to him, but strangers to each other as well.