по ходу, в Rocket League скоро будет трейдабельный лут, первый шаг сделают в скором апдейте: http://www.rocketleaguegame.com/news/2016/06/incoming-new-rare-items-trade-system/
Спойлер In-game tradeable. We are interested in Steam Marketplace support, but are focused on something that works cross-platform to start. EDIT: To be extremely clear, I mean a player-to-player system that can work on PS4 or Xbox. Do not expect to be able to trade items between platforms.