MMORPG

A Massively Multiplayer Online Role-playing Game (MMORPG) is an online computer Role Playing Game (RPG) in which a large number of players interact with one another in a Virtual World. (subtype of MMO); Computer Game type; http://en.wikipedia.org/wiki/MMORPG

http://www.mmorpg.com/

Examples:

• early/related: MUD/MOO
• Ultima Online
• World Of Warcraft
• Ever Quest
• Second Life (or is this more of a Virtual World/Virtual Community?)