Mar de Ferrugem

Missing, extremely new, or very obvious to obtain.

Based off of a science fiction novel of the same name, written by C. Robert Cargill. Sea of Rust is set in a post-apocalyptic world where humanity has been eradicated by its own creations. The story is about Brittle, a sentient robot scavenger who navigates through the "Sea of Rust," a vast wasteland of rusting metal and broken technology, facing allies and enemies along the way.