I Take My Invincible Apocalypse RV and Sweep the Roads

[Global Survival] + [Highway Exploration] + [Doomsday] + [Decisive and Ruthless] + [Zombies] + [Leveling] + [Invincible] + [System-based] + [Multiple Female Leads] + [Frozen World] + [Cthulhu] + [Unknown Creatures] + [Alien Technology] + [Alien Civilization] The moment I woke up, I discovered that 3.5 billion people had been plunged into an endless frozen world and forced to survive on the highway, where killing monsters dropped supplies. My motorhome can be upgraded without limit and ignores all the laws of physics, turning me into a Doomsday tycoon.