Marc's home from college on break, spending his time laughing about some of the crazy news stories he's found online, and gaming. When a message appears in his line of sight, blocking out absolutely everything else, he nearly freaks out. The message warns that the world has been in a variant Natural Laws beta test for millennia and that it's about to revert to the norms.

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.

Nathaniel's bus ride was supposed to be just another boring commute. Wrong. Now, he, 23 fellow passengers, and a corgi named Biscuit, are stuck in a "Hell Difficulty" Tutorial, battling monsters and leveling up to survive. Easy difficulty, anyone can handle. Normal difficulty, you've got to put up a fight to get by. Hard difficulty is where only the tough ones last. And Hell? That's where you have to be a bit out of your mind! With his terrifying talent for mana manipulation, Nathaniel decides to invest every stat point into mana.

Zane was driving home from work when the world changed. Thousands of dungeons spawned at once, taking up every inch of Earth—including the road he’s driving on. He wakes up to a totaled car and a broken leg, facing down a goblin trying to spear him through the guts. And that's just the start of it. But to Zane’s surprise, he finds himself enjoying this brutal new world. While others cower and hide, he goes on the hunt. He unlocks a unique Berserker skill—the more damage he takes, the stronger he gets.

Miles “Shrug” Lindstrom received a quest years ago. He was the only person who could see the window, and in addition to the quest, he could also see a countdown to the end of the world. Part of him was hoping that he was just insane and had been hallucinating when he first started seeing the window. Then again, if the quest was just his imagination, he was going to be massively in debt with a rental full of useless junk. But when the countdown finally stops, what happens is nothing like he could have imagined.

Meet Alexander Krup, your average high school graduate turned video game beta tester. Working for a strange company nobody has ever heard of, he earns his pay by the achievement. After a string of bad luck, including his girlfriend dumping him, he wakes up one seemingly average day and is suddenly faced with blue boxes of text that float in the air. While coming to grips with the fact that he might by hallucinating, a representative of his mysterious employer communicates through the menu boxes to offer a fresh life in another world.

Larek Holsten is different from most people living in the Kingdom of Androthe, where his seven-foot-tall frame is looked at with suspicion and anger from its shorter residents; but as long as it helps him become the best Logger he can be, he doesn’t let it bother him all that much. He and his best friend, an axe with a powerful Fusion that causes it to become sharper and stronger than a normal tool, are feared by the trees in the magical forest north of his home, as he can fell the quickly growing monoliths faster than anyone else in the community.

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.

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.

Growing up, she was the girl down the street. Even then, I knew she was different. She was tough, rough, and had the strength to stop a speeding car with her bare hands. We were as thick as thieves, sharing every adventure. Then one day she revealed a secret. She wasn't from Earth. She was from a distant place called the Arcadia Multiverse. Her people lived under the rule of a god-like entity known as the System. That System had its gaze fixed on Earth. And it was only a matter of time before it came for us.

Basil Bohen was asleep when the System arrived and the world changed... Dungeons suddenly popped up across the planet, summoning invaders and monsters from alternate realities. Ancient gods slumbering beneath the Earth were woken. And all humans were empowered with Levels and Classes gained by, amongst other things, killing monsters and other humans.

Because about four weeks ago, the world simply turned. One day we had iPhones and GoPros, Mickey Mouse and hamburgers. The next day we had magic and monsters. And us humans? We became players with levels, items, and classes. Pretty ironic considering how many times my parents told me to “quit gaming and experience real life” while I was growing up. And then real life grabbed us by the balls, and it was the gamers who were prepared.

It was a day like any other when suddenly the world changed. The universe reached a threshold humanity didn’t even know existed, and it was time to finally be integrated into the vast multiverse. A place where power is the only thing anyone can truly rely on.

A lost soul from Earth transmigrates into a world of cultivation and finds himself in the body of a playboy noble who is wasting his life. Except Chen Haoran doesn't have any memories, can't let anyone know he's not the same person, and is immediately involved in a conspiracy with another powerful noble family involving the downfall of a prominent young genius. Luckily, he came to this world with a power: Whatever he gives to someone as a gift he'll get it back 100 times better.

Isaac Thoma lived to see the last handful of survivors defeat the demonic champion. He is now alone, his past in ashes, the last and most powerful human on a blighted Earth. But what if he could go back? Hurled back in time, Isaac has one chance to change it all. A chance to warn humanity of their impending doom. A chance to stop the [System] before shortsightedness and lust for power can render humanity extinct.