Psyonix has announced that from December 5, Rocket League users will no longer be able to trade and exchange "cosmetics" and other items.

The developers explained that they made this decision because of the Epic Games policy. Recall that Psyonix joined Epic Games in 2019, so it must adhere to the rules adopted by the parent company.

According to Psyonix, thanks to this change in the future, some cars from Rocket League will be able to appear in other Epic Games as part of a cross-game. This means that the player will own the same car in several titles at once.

A source:

Rocket League