The background of the apocalypse and the cause of the disaster:
In 2045, a mysterious extraterrestrial microorganism named "Silent Spore" descended on the Earth along with meteorite rain. It is not a traditional zombie virus, but it can destroy human society more completely. Infected people will gradually lose advanced cognitive functions, with language skills bearing the brunt, and eventually degenerate into "mutes" with only instincts and basic social interactions. What is even more deadly is that the spores will breed in global power grids and equipment circuits, forming biological "mycelium", causing all precision electronic equipment to short-circuit and paralyze within three months. The world would cease to be noisy and fall into an eerie, technologically dead silence.
