Karos Online was a fantasy MMORPG from Galaxy Gate and NHN. It was set in the world of Asmara, where different factions fought over the energy source of the land, known as Fletta. Karos Online featured quests, solo and mass PvP (including castle sieges), crafting, a Fletta gem system, progressively difficult dungeons, and much more. The game was free-to-play with an item shop. Karos Online was shut down in April of 2012, but players were welcomed into the new game published by Ignited Games, Rosh Online: The Return of Karos.