Zoids Wild Zero(2019)

Zoids Wild Zero is an anime series set in a distant future where humanity abandoned Earth for Planet Zi, home to sentient mechanical lifeforms called Zoids. When Zi faces extinction, survivors attempt to return and terraform Earth, but the plan catastrophically fails. The planet becomes a hostile wasteland of rogue Zoids and violent weather, forcing the migrants into desperate survival. Two factions—the Empire and the Republic—race to excavate ancient Zoids buried beneath the surface to strengthen their militaries. The story follows Leo Conrad and Buzz Cunningham, second-generation Earth natives who encounter Sally Land, a girl fleeing Empire forces. As these three are drawn together, they must navigate a world torn between rival powers and mechanical chaos, uncovering secrets that could determine humanity's fate.