Labyrinth of the Mad God
Magnus Grey
An apocalyptic LitRPG where the System comes to Earth and civilization burns in minutes. The Mad God Taltos plucks Earth from the heavens and plunges it into the beating heart of the labyrinth — a twisting maze of worlds, dimensions and planes where the System's rules are warped by an insane deity. Nick thought his dreams had come true when the System arrived; eleven minutes later his world is ash. He and fellow survivors must fight to reclaim their birthworld, rising from a tutorial on the Searing Isle to face Taltos's trials. Offered a chance to win Earth back by enduring deadly magical worlds and a two-round arena against his toughest opponents, Nick ventures with allies into the heart of darkness to earn better classes for humanity and find humanity's place in a multiverse of magic and monsters.
Goodreads
Royal Road