I Rely on Farming to Dominate the Savage Lands [System]

【Pre-Release Novel "I'm a Web Celebrity in the Interstellar Era [Live Streaming]" Seeking Favorites QAQ】 Wei Minghan was the mastermind behind a city-building game. While he relentlessly tormented programmers and copywriters, he never imagined that one day he would be suddenly sent back to the primitive era, along with the game he had designed. Saber-toothed tigers and short-faced bears felled century-old trees with a single swipe of their paws right before his eyes; Carnivorous giant fish larger than lions bared their teeth at him; Ancient "cosplayers" wearing animal skins and cat ears smiled faintly, transforming on the spot into grassland cheetahs; ... System: You must conquer them...