He later avenges the deaths of his family and becomes the God of War after killing Ares. Kratos is eventually revealed to be a demigod and the son of Zeus, who later betrays him….Kratos (God of War)KratosSpeciesDemigodTitleGod of War Ghost of SpartaOccupationGeneral of Spartan Army (Former) Greek God of War
AresAres was the ancient Greek god of war or, more properly, the spirit of battle. He represented the distasteful aspects of brutal warfare and slaughter. Ares was never very popular, and his worship was not extensive in Greece.
Though Kratos is not a character in actual Greek mythology, there is a being in myth named “Cratos”. He is the son of Pallas and Styx and he is the personification of strength and power. In Greek mythology, Cratos and Bia were commanded by Hephaestus to imprison Prometheus.
Is Kratos a god or demi-god in the new God of War game? As Joe Szalko already pointed out, he was born a demigod, before being promoted to god of war after dispatching Ares.