Everquest

EverQuest, EQ p.n. brand name of an Internet-based fantasy MMORPG produced by 989 Studios. See EverCrack. [BAL]
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Addendum: A descendant of MUDs, EverQuest features a first-person three-dimensional graphical interface and high popularity. At one time, it was extremely addictive due to its combination of good audiovisual and gameplay features, and its multiplayer capability allowing for an approximation of socialization between players. [BAL]
Addendum #2: Even in the age where World of Warcraft has long since dethroned EQ and the original has been further supplanted by its sequel EverQuest II in popularity, there are still diehard players of the original, much like the hardcore players who still rock classic MUDs or Neverwinter Nights or Asheron's Call, two other ancient MMOs.