"Like the Crate things that went before them, Blueprints Rocket League Credits can drop with uncommon credits like Painted, Certified, and Special Editions," Psyonix wrote in a blog entry illustrating the framework.
The thought is that players will realize what they're getting from Blueprints rather than "shock mechanics" of plunder boxes, which have been dubious. In May, United States representative Josh Hawley proposed new enactment that would boycott pay-to-win mechanics and prohibit organizations from selling plunder boxes to kids. Psyonix's change to Blueprints is one approach to deal with the contention. Adding a plunder box "X-beam scanner" to Counter-Strike: Global Offensive in for French players is another way.
Anyway, in Rocket League, Crates will stay until the RL Items December update, and when it does, Rocket League keys will be changed over into Credits. Boxes, as well, will be changed over into Blueprints "of a similar arrangement," Pysonix said.
