Battle of the Youstrass is a classic Japanese-style top-down tactical RPG with turn-based combat. The game takes place in a world called Eustrass, where two countries share one continent, and technology and magic coexist as one. One of the countries, Kradion, is largely in oblivion, whose people are famous for their mercenary soldiers and mechanical fighters. Another country, Welfrad, is prosperous and dependent on imported food. When the great famine began, there was no food and times were hard, so Kradion attacked Welfrad, almost wiping out Werfrad's royal knight units. By a happy coincidence, several fighters survived, and you have to lead a squad of survivors and save your country.