Rappelz is a free-to-play massively multiplayer online role-playing game. The game is developed by the Korean company Gala Labs, formerly nFlavor, and published by the Californian company Gala-Net Inc.
Rappelz is set in a medieval fantasy world, dominated by three races: the Deva, who represent light, the Asura, who represent darkness, and the Gaia, humans that possess an affinity with nature.
Each major installment of the game is referred to as an "Epic", similar to Lineage II's "Chronicles". The current installment is called "Epic VII: Awakening".
Source: Wikipedia, "Rappelz", available under the CC-BY-SA License.