SUN gives you the choice between four classes. The Berserker is a tank, with the ability to take a lot of damage and give out his fair share. The Dragon Knight is more a supportive class with high speed. The elementalist boasts powerful healing abilities. The Valkyrie attacks mainly with a bow, but also has a pet that can do the up close fighting for her. No matter which class you choose, you will fight in one of the seven kingdoms in Brakion, ganging up to lead a revolution against the Empire. SUN contains normal quests, PvP combat, and a party system to conquer bigger quests and monsters.