MMOPRG Posted in M Best definition MMOPRGinternet Massive Multiplayer Online Role Playing Game. If you play Runescape, WoW or anything like that and reading this…your stupid MMOPRG : Runescape, World Of Warcraft, Adventure Quest…. How satisfied are you with the definition? Looking for MMOPRG meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 45 times.