The 42nd Merging arrives, mass-transporting every human to a hostile new world with a System. Everyone must choose a Class, and Quest directives compel them to climb the leaderboards for categories like highest level… and most kills of other people. Jordan isn’t anyone special before the Merging, but the new start equalizes the playing field. He must exploit his versatile class to overcome powerful monsters and opportunistic strangers who kill people as a quick path to power.

Orodan was an orphaned street rat who clawed his way to the county militia with hard work. When calamitous events unfold and draw him into events bigger than himself, Orodan's battle-loving disposition leads to a warrior's death. Then he wakes up again at the start of the Cataclysm. Then again. And again. In a world of skills, titles, and blessings, a smart time-looper would perhaps scheme, plan, amass equipment, and allies. But not Orodan. If there's one thing he's good at, it's stubbornly trying the same thing over and over again via brute force till it's done.

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?

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.

When Yorick moves into his grandfather's house and discovers a magical sword, he opens a portal into a fantasy realm known as Exigen. Talk about being thrown into the deep end. If he wants to survive, he must battle monsters, level up, and learn to avoid vicious tentacle monsters. With the fate of the Kingdom in peril, only Yorick and his enchanted sword can save the princess and thwart the forces of evil.

Cast into a brutal military camp by his once loving master, Mateo feels like the last six wonderful years of his life have been a lie. With the mysteries surrounding him growing, Mateo knows that his only option is to become one of the supernaturally powerful Duelists and grow in power until he can take his fate into his own hands. That plan is thwarted from the beginning when he gets stuck with the lowest-ranked Root Card against his will, ensuring that his growth as a Duelist will always be excruciatingly slow.

Mark’s new life begins in the worst possible place—a burned-out village haunted by undead. Each morning these ravenous creatures disappear, only to return at night, driven by a relentless hunger. He'll need to stay low and think quick, because trapped and alone in the body of a child, he can’t level up in this new world. At least not yet. Soon Mark will learn that even among the living, safety isn’t guaranteed. When the small town that he ends up in turns out to be at the center of a conspiracy that threatens the world, he'll need to uncover the truth before it's too late.

Ah, Nyil, with its magic, its monsters, and its petty gods. A divine spat leaves French medic Viv stranded in the middle of an arcane disaster zone crawling with undead horrors. Thankfully, there are strange allies to be found, not least the mysterious interface that helps humans survive in this merciless world. Viv will have to progress fast to survive this calamity and find civilisation. She will also need a bit of luck. Unless, of course, she becomes the calamity herself. After all, luck is such a fickle thing.

The Integration didn’t just change the Earthen Union—it tore it apart. Monsters, mayhem, and madness turned civilization into a battlefield. Yet, while the world crumbled under the weight of despair, David felt something unexpected: he felt at home. Even after being forced into the [Cleric] Class, David refused to yield. He adapted, turning his unwanted gifts into tools of both healing and destruction, forging himself into a battle-hardened healer unlike any before.

With a knife in his gut, Rowan figured he was destined to become just another corpse littering the slums of Taureen. So he was fairly surprised to wake up in the back of a moving wagon with a couple of adventurers. Turns out that Rowan had been given something most street rats can only dream of—a second chance.

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?

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.

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.

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.

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.