Rocket League with 5 Million downloads since launch!

[Samus Aran]

Normchacho said:

I'd love to see the evidence you used to determine that it would have done 20% of what it did if it wasn't free. 

Did it being free help? Of course. Is it also because the game has great word of mouth? Yup.

It sold 500k on Steam (which wasn't free). Keep in mind that Steam sales were also affected by the good worth of mouth from PS4 owners.