Dungeon Fighter Online transports players into the mystical realm of Arad where dangerous dungeons abound. Gamers battle monsters as an individual explorer or team up to journey through exclusive multiplayer dungeons. Like other Nexon titles, the game's controls are easy to learn and can be tailored to personal preferences. Players can choose from five distinct character classes - Fighter, Gunner, Mage, Priest and Swordsman - each featuring a unique set of abilities and powerful attack combinations. Each class further specializes into four sub-classes, which opens up further skills and customization.