Stranded in the Three-Body Universe with Wandering Earth Tech

When a lone engineer awakens in the dystopian Three-Body universe, he discovers something impossible—blueprints for Earth's planetary engines. Armed with technology from The Wandering Earth timeline, he must navigate alien invasions, sophon surveillance, and humanity's darkest hour. Can one man's knowledge of a different apocalypse save civilization from the Trisolaran threat? A thrilling crossover where hard sci-fi survival meets cosmic-scale engineering.