PlayStation Play at Home 2021 event will include free in-game content for a number of titles including Rocket League, NBA 2K21 and Call of Duty Warzone.
The free in-game content will be available via the PlayStation Store as follows:
17 May to 6 June
Rocket League: PlayStation Plus Pack –...
I want to say it's one to one, but in all honesty I'm a bit fuzzy there. I can recommend JoyFreak's sister site AdminIntel - Admin & Webmaster Resource where there are lots for people of varying degrees of expertise with development, you likely can get a far more precise answer there!