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1.
Open Role Playing Game as referred to by Warcraft 3. It's a RPG that has a saving and loading feature.
Dude I love this Orpg Twillight Eve. I load my assassin and fuck everyone up!
by AceZero July 05, 2009
 
2.
Online Role Playing Game, normally just an online RPG, no MM (mass multi player) element.
A good example would be Vitalise games made with click team products, non come to mind as I write this.
by bublnsqeek July 06, 2005