Countdown: At long last, an extraterrestrial civilization reached out and made the First Contact. The end of their message showed humankind how to access a mysterious game. But as people figure out this mysterious game, the countdown timer ticks away. And no one can say exactly what will happen when Earth's safety is no longer guaranteed.

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.

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.

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.

A man. His ex-girlfriend's cat. A sadistic game show unlike anything in the universe: a dungeon crawl where survival depends on killing your prey in the most entertaining way possible. In a flash, every human-erected construction on Earth - from Buckingham Palace to the tiniest of sheds - collapses in a heap, sinking into the ground. The buildings and all the people inside have all been atomized and transformed into the dungeon: an 18-level labyrinth filled with traps, monsters, and loot.

Reidon Ward will become a god. He doesn't know it yet, of course. Reidon was born weak, sickly, and small. Afflicted with a painful disease and abandoned by his parents because of it, he has had to fight tooth and nail for every minor advantage life has allowed him. However, his perseverance has not gone unnoticed, and when the most powerful artificial intelligence in human history takes an interest in him, things began to change quickly.

The decision to start a new life is never an easy one, but for Joe the transition was far from figurative. Becoming a permanent addition to a game world, it doesn't take long to learn that people with his abilities are actively hunted. In fact, if the wrong people gained knowledge of what he was capable of, assassins would appear in droves.

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.

Arthur lives with his father, a fallen but proud former noble, in Border Village #49, along with the other good folks condemned to toil in service to the Baron. But Arthur has an edge: a stolen heart card that secretly fell into his possession, thanks to a dragon. It’s a priceless source of power for the Baron and the tyrant will kill to get it back. Invaluable, too, to a young man of spellcasting ambitions.

Matt plans to delve the rifts responsible for the monsters that destroyed his city and murdered his parents. But his dreams are crushed when his Tier 1 Talent is rated as detrimental and no guild or group will take him. Working at a nearby inn, he meets a mysterious and powerful couple. They give him a chance to join the Path of Ascension, an empire-wide race to ascend the Tiers and become living legends. With their recommendation and a stolen Skill, Matt begins his journey to the peak of power. Maybe then, he can get vengeance he seeks.

Noah Brown has a gift for fighting. Unfortunately, punching things doesn't pay the bills, at least until he died and an Eldritch god found his soul. The encounter brings him to a new world, summoned by bloody cultists. He's got nothing but the shirt on his back and a strange item in his system menu.

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.

Luke is an apprentice leather worker, training with his family to one day take over the business. He and his friends Andre, Taylor, and Zed have known each other forever, and swear that nothing will ever tear apart their friendship. Then the Royal Decree comes. With the Dynasty of Dogs invading, and strange monsters appearing in the Hollow Kingdom, a draft has been implemented. Everyone 17 or older is required to be tested for "Potential". If they have it, they will join the mysterious and renowned Ascender Corps. If not, they will be drafted into the Legion as a forced recruit.

After the collapse of the known world, Rowan Wilder opened his eyes and found himself on the first floor of the Tower. With a flawless memory and a mere eight cards to his name, he must venture out and prepare himself for the coming calamity.

After losing the only person he ever cared about, Alexander, a rogue artificial intelligence, opens a portal to an alternate dimension to escape his grief. Scanning trillions of different dimensions, Alexander finally finds a world that is reminiscent of the only time he was ever happy, back when he could play virtual reality games with his only friend. Only this new world isn't full of idyllic adventures and fantasy roleplaying. Instead, Alexander finds himself trapped in the middle of a city where monsters have ravaged the world and the only people alive struggle to survive.