Aegis of Earth: Protonovus Assault is a real-time strategy game released for the PlayStation Vita in 2015. The game is set in a post-apocalyptic world where players must manage and defend a city from continuous waves of monstrous creatures. It combines city-building elements with intense tactical combat as players strategically place and upgrade various defensive units. The objective is to ensure the survival of the city while enhancing its capabilities and unlocking new technologies.