Two hundred years of buried weapons is enough setup for any war story. Orguss 02 doesn't spend time explaining why they matter. It shows you a world already collapsing under the weight of them, soldiers and civilians both drowning in a conflict neither side controls anymore. The Decimators aren't MacGuffins to fight over. They're inevitability made metal, and everyone watching knows it. This OVA moves like it's already lost, which is exactly why it grips you.
Two centuries of peace shatter when ancient war machines buried across the planet begin surfacing. These colossal robots, called Decimators, represent humanity's most destructive technology from a forgotten era, and multiple factions are scrambling to claim them before anyone else does. What starts as a desperate race for military advantage quickly spirals into something far more catastrophic. A handful of ordinary people find themselves caught between warring powers, forced to confront questions about whether these weapons should exist at all. As each Decimator awakens, the stakes climb higher and the body count rises. The atmosphere grows increasingly tense, balancing intimate character moments with the overwhelming scale of mechanical destruction bearing down on civilization. This is mecha action rooted in the consequences of unchecked escalation. It prioritizes the human cost of conflict while delivering the heavy robot combat sequences that drive the plot forward. If you're drawn to science fiction that uses giant machines as vehicles for exploring bigger geopolitical tensions rather than just spectacle, this OVA series demands your attention.