Definition: An online roleplaying game (RPG) in which hundreds or even thousands of players participate in the same game simultaneously. These games typically include a persistent virtual world and charge monthly fees for access, although there are a growing number of free MMORPGs available. In the usual RPG fashion, you create a character and undertake quests for "experience," which often involves killing monsters. EverQuest, Ultima Online, World of Warcraft, and City of Heroes are a few of the most popular MMORPGs in North America.
Also Known As: MMOG, MMO