Rocket League's Crate plunder box framework. Diagrams will supplant Crates at some point one month from now and will change the manner in which plunder Rocket League Credits drops work in the game.
When the update drops, you'll get an opportunity to procure Blueprints from each online Rocket League coordinate you play. Whenever you have a Blueprint, there are three things you can do with it: construct the thing in the Blueprint (this requires Credits), exchange it to another player, or keep it with you.
All Crates you have in your stock will be changed over to concealed Blueprints after the update. Just Blueprints that used to be Crates will be concealed, however you can uncover what thing the Blueprint will work at no expense. After it's been uncovered, you'll have to Buy Rocket League Items spend Credits as regular to construct the thing in the Blueprint.