musi Lopa (toki Inli: Roblox [ˈroʊblɒks]) li musi ilo pi jan mute. musi ni la sina lawa e ijo sama jan li ken pali e musi. sike suno nanpa 2004 la jan Tewi Pasuki (toki Inli: David Baszucki) en jan Ewi Kaso (toki Inli: Erik Cassel) li pali e musi ni. sike suno nanpa 2006 la musi Lopa li kama open tawa jan.