Steel Harbinger is a third-person shooter for the PlayStation 1, blending sci-fi and post-apocalyptic themes. Players take on the role of Miranda Bowen, a half-human, half-machine protagonist, aiming to save the earth from an alien invasion responsible for turning humans into flesh-eating mutants. As an action-packed title, it features a mix of combat and exploration, allowing players to utilize an array of weapons and abilities to battle through various levels filled with diverse enemies and challenges, all set in a grim futuristic landscape.