Wasteland Starship: Allspark Wars

In 2242, a full-scale nuclear war broke out on the earth, turning the surface into a wasteland. Humanity was divided into two camps: the "bunker faction" who hid in underground bunkers, relied on "biogenetic technology" to survive, and could transform their bodies to adapt to the wasteland environment; and the "starship faction" who escaped from the earth in 12 "Spark Starships" and colonized the periphery of the solar system, relying on "quantum mechanical technology" to develop and transform mechas and starships. Due to conflicts over resources and ideas, the two factions fought a "fire war" for 300 years. The two factions have been at war for 300 years, each wanting to completely eliminate the other and unify human civilization. But during a battle, the protagonist discovers the top-secret files of the nuclear war of that year - the nuclear war of that year was not initiated by humans at all, but the intervention of high-dimensional civilization "observers". They regarded humans as experimental subjects and observed the evolution of humans in extreme environments. The 300-year war between the two factions is just their experimental data. Humanity's ultimate enemies are never each other, but high-dimensional observers who treat them like ants.