Seal Online is unlike other MMORPGs, in the fact that it is more like an adventure game, following a day-to-day simulation of living. The game allows players to control their own character and level up "Without a level limit". Unlike some games, which focus on PvP elements, Seal Online focuses around a monster inhabited world. The higher your level, the higher quality your armor is. Armor and weapons designed for higher level players allow the player to withstand much stronger monsters.