Phantasy Star III. It is a neighboring city to Landen and home to princess, and eventual queen, Lena. In an act of revenge spanning 1000 years, the town was destroyed and its king was murdered by Lune and Alair's monster army.
If Rhys married Lena, his son, Nial, investigates the once prosperous site for information regarding Lune's whereabouts. Regardless of Rhys' choice, Satera was doomed to fall by the Layan army in every timeline.