Challenge Game: The Shining Mechanic from the Start

[Mechanic + mechanical girls + survival game with rounds of challenges + cutting-edge technology + multiple worlds] He Hongqing is pulled into a survival challenge game. Fortunately, he has a golden finger and becomes a mechanic, beginning a grueling struggle to survive in the game. After enduring three attacks and a frigid cold wave with temperatures below minus 100 degrees, He Hongqing survives the first survival game with the help of his mechanical girls. During that time, he goes from a novice mechanic to challenging mechanical swarms again and again, eventually advancing to become a senior mechanic. After the first survival game ends, He Hongqing is forced to take part in another. This time, the challenge is set in a biopunk world. It poses little danger to him, and instead gives him time to develop. The seven days in the survival game simply aren't enough for him to make progress. After spending over a year in the biopunk world, He Hongqing has built up his mechanical swarm. A cute and lively Infernal Demon King, a taciturn long-range sniper, a broad-chested medical unit, a slightly chubby cargo hauler... Surrounded by all kinds of mechanical beings, he feels his blood race. After clearing the challenge game, He Hongqing receives a world-class reward for killing 13,257,952,154 zombies. What he never expected was that his backers were a little “over the top.” After he turns in the world-class reward, the Mechanic Headquarters goes straight after the organizers of the game and wipes them out. And with that, the survival challenge game comes to a complete end. Back in the real world, with no more massive resource supplies, He Hongqing turns his attention to the dominant nation in this world. (New writer, new book. My writing isn't great. Please speak up if anything seems off, and I'll fix any mistakes right away.)