Megahit

Common synonyms include: blockbuster, blockbusters, cross platform hit, cultural phenomenon, hit, juggernaut.

/ˈmɛɡəhɪt/ noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A large success or hit.
"We settle on our target: a group of women riding around on a Manhattan tour bus and visiting sites featured in HBO's '90s megahit Sex and the City."
2
an unusually successful hit with widespread popularity and huge sales (especially a movie or play or recording or novel) wordnet

"We settle on our target: a group of women riding around on a Manhattan tour bus and visiting sites featured in HBO's '90s megahit Sex and the City."

From mega- + hit.