EverQuest Online Adventures is set in the fictional world Norrath 500 years prior to the original EQ in what the game designers have called the "Age of Adventure". The world features many places familiar to fans of the original and most of the differences were explained in the lore of EverQuest.
The gameplay focuses on character advancement, environment combat, quests, exploration, grouping, and socializing. It also contains a simple dueling system for 1 v. 1 player action (not counting player pets), but it has had many criticism and has been involved in many item duping glitches.
There are fifteen playable classes, and ten races.
Classes include Cleric, Druid, Shaman, Enchanter, Wizard, Alchemist, Necromancer, Magician, Bard, Ranger, Rogue, Monk, Paladin, Shadowknight, and Warrior.
Races consist of Dwarves, Elves, Dark Elves, Human (Eastern and Western), Gnome, Troll, Ogre, Barbarian, Erudite, and Halfling.
Source: Wikipedia, "http://en.wikipedia.org/wiki/EverQuest_Online_Adventures," available under the [ http://creativecommons.org/licenses/by-sa/3.0/ CC-BY-SA License].