Doomsday: Absolute Slaughter

Lin Chen awoke amid the ruins of the apocalypse and discovered that he had returned to one hour before the zombie virus outbreak. A [Doomsday Invincible System] suddenly appeared on his wrist, and a cold, mechanical voice announced: "Host binding successful. Beginner mission: Kill the first zombie and receive 'Absolute Defense' as a reward."

As the city fell and former friends and family mutated, snarling, Lin Chen gripped the fire axe in his hand, not a trace of hesitation in his eyes. Hot weapons redeemed from the System Shop, a body strengthened by gene serums, and skills unlocked from the skill tree, including teleportation and energy blasts... He advanced over mountains of corpses and seas of blood, never stopping for misplaced compassion.

"Anyone in my way dies." That was his rule for survival. Whether facing hordes of zombies devouring the living, survivor groups coveting his supplies, or unknown mutants lurking in the darkness and far more terrifying than zombies, Lin Chen's vocabulary held only one word: "Eliminate." The System gave him invincible potential, and he would use the most ruthless methods to carve a bloody path to the top through this hellscape. But when he finally reached the top of the doomsday food chain, he discovered the ultimate secret hidden behind the System, one concerning the survival of human civilization.