It took Rocket League just three weeks to more than double the lifetime downloads of the game's predecessor: Supersonic Acrobatic Rocket-Powered Battle-Cars, the developers tell Polygon.
Earlier today, developer Psyonix tweeted that Rocket League had been downloaded 5 million times. Those downloads include purchases for the PC and PlayStation 4 version as well as the PS Plus downloads. Rocket League is free as part of PS Plus membership through Aug. 4.
Rocket League hit 4 million downloads just a week ago, according to the developer.
"In comparison to the original Battle-Cars, Rocket League has had more than double the lifetime downloads in its first three weeks," said Jeremy Dunham, vice president of Psyonix. "It's a much stronger response than we ever imagined, and the studio is ecstatic about it."
Rocket League hit the PlayStation 4 and Windows PC on July 7. The game has players taking control of a variety of rocket-powered cars as they try to score a goal on the opposing team of cars with a giant ball. There is mayhem and, if you're good, a little bit of flying.