Without so much as a warning, humanity in its entirety was suddenly moved to another dimension. Every person, without exception. But this new world, with all its opportunities and gifts of wondrous abilities, was a stadium. A deadly arena of an unimaginable scale. And humanity was to be its latest gladiators. Every man, woman, and child was given a weapon and ordered to fight. Stuck in this dimension without a way out, only two options existed for the would-be hunters: Fight with monsters to complete the many trials ahead, or perish.

An AI calling itself Schema has assimilated Earth into its System. As a consequence, everyone gained access to status screens, power-ups, and skills. This AI turned these concepts from fiction to fact. It's easy to become intoxicated with leveling up and becoming stronger. To some, it's too good to be true, like living out a dream. For Daniel, however, it's closer to a nightmare.

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?

Jay Luckrun has many interests: street dancing, anime, action movies, comedy, and dashing across rooftops to the point where his bullies nicknamed him Rooftop Weirdo. After struggling to confront his untouchable high school crush at her seventeenth birthday party, Jay adds another interest to his list—Dungeon Crawling in the face of the apocalypse. Jay meets a divine creature who chooses him to become a Champion. Someone with a leveling System, stats, skills, access to other dimensions containing dungeons filled with supernatural loot, and magical powers that’ll alter reality as they know it.

Ilea likes punching things. And eating. Unfortunately, there aren’t too many career options for hungry brawlers. Instead, the plan is to quit her crappy fast-food job, go to college, and become a fully functioning member of society. Essentially—a fate worse than death.

Jack Rust was a disillusioned biologist with a PhD—almost. When an extraterrestrial AI calling itself the System invaded Earth and thrusts it into a world of aliens and violence, the least Jack hoped for was gaining access to magic.

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.

Michael finds himself in the realm of the Forever Kingdom, with no memory of how he got there and who he is. Even so, he must participate in the Grand Game and forge a new destiny for himself. Dropped into a dungeon of monsters and strange magics, would you survive in a game where to lose means death? Alone, and with little more than his wits to aid him, Michael must advance as a player, slay his foes, and gain experience. All while navigating the intrigues around him and discovering his purpose.

Against his will, Thaden was transported elsewhere in a big flash of light along with millions of other Humans from Earth, to a place where they would train to become Contenders in a whole new world. Unfortunately for him, something occurred during his transference into the “Training” program, and he was ejected from the whole training process and sent into the open mouth of an active volcano for bodily disposal.

On a day like any other, an alien descends to Earth, unleashing untold death and destruction. Alistair watches the live news footage of the carnage, his eyes glued to the image of impossible power made manifest. The alien’s arrival kicks events into motion that no one could have predicted. Earth is prematurely initiated into a universe-spanning empire of cut-throat cultivators, beasts, and entities of ungodly power—all guided by a mysterious AI System. The System’s first quest? Kill someone.

Tragedy had reduced James to a nobody. Washed up and homeless in NYC, he thought his life was over. Then a message appeared in his vision: [60,000-year countdown has ended] [Nemesis 1 released] [Please acknowledge]. As the world falls apart, as billions die, as society collapses, and all hope seems lost, James discovers a powerful truth: he was wrong to think himself a nobody.

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.

Ascending should have been the easy part. But after being thrown into the void, Thorn finds himself stranded in a strange world filled with even stranger creatures. Together with his cute battle pet, the mysterious god beast Hati, and a sentient AI named Eve, Thorn must forge a place for himself in this new world. Unfortunately, the local guilds all have other ideas, and soon the Titan finds himself embroiled in plots that even his famed strength cannot help him with.

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.

Jeb Trapper tried to kill himself. The gun jammed. Two months later, the vet is now participating in underground trials of ecstasy to treat his PTSD. Everything seems to be going great until Jeb is teleported into a tutorial, along with everyone else on Earth. Now, he has to choose the level of difficulty. There's just one problem: He's high as a kite, and nothing seems impossible.