Competitive online role-playing game

Cooperative Online Roleplaying Games (CORPG) differ from the standard Massively Multiplayer Online Roleplaying Game (MMORPG) in that they are less focused on the massive group experience. All outside areas are instanced, meaning that a player and his group are the only ones there, so that every player gets his or her own unique version of the game's story without the headache of killstealers or people disrupting the fun.

In Guild Wars, as opposed to one of NCSoft's other offerings, like City of Heroes, a player might roam the countryside with a group of 4 other heroes. In an MMORPG like City of Heroes, the group would be surrounded by other similar groups, all wishing to kill the same mobs and achieve the same goals, at the same time, in the same space. Guild Wars eliminates this scramble, letting players take the game at their own pace.