Topic summary
Massively multiplayer
Extracted from the Wikipedia article Massively multiplayer online game.
Music/rhythm
Massively multiplayer online music/rhythm games (MMORGs), sometimes called massively multiplayer online dance games (MMODGs), are MMOs that are also music video games. This idea was influenced by Dance Dance Revolution. Audition Online is another casual massively multiplayer online game and it is produced by T3 Entertainment.