Ragnarok Online

Ragnarok Online (Korean: 라그나로크 온라인, Rageunarokeu Onrain marketed as Ragnarök, and alternatively subtitled The Final Destiny of the Gods) is a massive multiplayer online role-playing game (MMORPG) created by Gravity based on the manhwa Ragnarok by Lee Myung-jin. It was released in South Korea on 31 August 2002 for Microsoft Windows. The game has spawned an animated series, Ragnarok the Animation, and a sequel game, Ragnarok Online 2: Legend of the Second. The player's characters exist in a world with a player environment that includes NPC's (non-playable characters) that can be interacted with, and creatures spawning in maps that need to be defeated to level-up and to acquire items.