Dekaron is a fantasy MMORPG taking place on the fictional planet of Trieste which has two moons. The universe is based on the European culture in the Middle Ages. In a final effort to turn the tides in a war with the gods the humans unleashed creatures from the underworld. These creatures defeated the gods but could ultimately not be controlled and turned on the humans. The game offers several character classes to choose from. The classes are:
- Aloken: a spear fighter able to cast power raising spells for allies;
- Azure Knight: a knight using either a one-handed weapon and shield or a two-handed weapon;
- Bagi Warrior: a warrior with magic resistance, great stamina and strength;
- Black Wizard: an Incar Magician who specializes in black magic;
- Concerra: a type of summoner;
- Dragon Knight: a melee fighter able to use seal force;
- Half Bagi: a half Bagi half human with great stamina using rage in battle;
- Incar Magician: an elemental mage who uses fire, ice and lighting spells;
- Segeuriper: a class that practices vampirism;
- Segita Hunter: a class using bow, crossbows and daggers;
- Sengale: able to cast healing spells and curses;
- Vicious Summoner: spell casters who summon minions to aid them, and use either a staff or dual sword.
The games puts the focus on PvP and has fast-paced battles.