Injustice: Gods Among Us (2003)

In an alternate reality, the Joker destroys Metropolis with a nuclear weapon, killing millions of people, after tricking Superman into killing Lois Lane and their unborn child. A grieving Superman murders the Joker in retribution. In order to permanently eliminate conflict, Superman establishes a unified world government, known as the One Earth Government, which he leads as its new High Councillor. A war ensues between the forces of Superman’s regime and Batman’s insurgency...