MU Online (Korean: 뮤 온라인) is a 3D medieval fantasy MMORPG, produced by Webzen, a Korean gaming company. MU Online was created in December 2001 by the Korean gaming company Webzen. Like most MMORPGs, players have to create a character among eight different classes (with the Grow Lancer being the newest) and to set their foot on the MU Continent. In order to gain experience and thus to level up, a players needs to fight monsters (mobs). MU is populated by a large variety of monsters, from simple ones like goblins and golems, to frightening ones such as the Gorgon, Kundun, Selupan or one of the newest bosses called Core Magriffy. Each monster-type is unique, has different spawn points, and drops different items. The game is currently running season 11
At the start of the game the players can choose between six different character classes – Dark Wizard, Dark Knight, Elf, Summoner, Rage Fighter and Grow Lancer. Players can unlock a Magic Gladiator and a Dark Lord as they progress. Each class has its specific powers and items. As characters level up and complete quests, they can transform themselves into stronger classes. Each progressive class change grants, gain access to new spells, skills, weapons and wings as well as an associated change in appearance.
The Chaos Machine is located in Noria’s center of the city, near the vault keeper. In order to use it, one’s character must be at level 10 or higher. When entering the Chaos Machine, the player will have 3 options.