Retro City Rampage Sold 170,000 Copies, 270,000 More Through PS+

[DamnTastic]

ethomaz said:

Devs already said they receive money from PS+ games.

"For the two games we had for free on PS Plus, the revenue from the free offering was between 10-15 percent of the overall revenue we made from each game,"

http://www.gamasutra.com/view/feature/191966/playstation_plus_good_for_.php 

So they have revenue from the "free" PS Plus version but of course it is less than the paid version. 

So who gives them the money? Sony?

This will make ps plus a zero operation for them then? If you don't consider people taking advantage of the discounts.