In the SUN open beta test, not only a spacious field map will be added, but also a new concept of a detailed quest system will be introduced. Also, newly integrating the mission and competition elements as the main composition, the game will provide a 'survival mode', which the users will have to compete which other in order to survive, and the 'time attack' mode, where the users will hunt as many monsters as possible during a limited time. The users will also be able to enjoy the vivid PvP element, and the 'ranking system' which will be provided regularly within the game.

The AC (Area Conquest) System, where the user can receive various benefits depending on the amount of contribution by the user in its corresponding area, is another factor the users will enjoy during the open beta.