It became known which monetization will replace the lootboxes in the Rocket League. It is called Blueprints and is associated with crafting items for a new currency. 

Why is football the most popular sport? It is easy to learn and understandable at the most basic level: here is the ball, it needs to be driven into the goal. You can change the terms and conditions as you like, and still there will be something in this. 

If you go a little crazy and instead of the players of your favorite club drive out indestructible cars on the field, equip them with turbo-acceleration and reinvent all the laws of physics, you get the Rocket League. Shamelessly unrealistic and infinitely beautiful.