Time Travel: Revitalize the Human Race in Various Worlds

Chen Ke got a special system, so he started to build a steel fortress in a world where zombies were rampant, established a civilization in a primitive and wild world, established an eternal sect and conquered all races in a world of immortal cultivation, and resisted alien invasions in a future super-tech world, all for the purpose of revitalizing the human race! ! ! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.