Rocket League is a vehicular sports game developed and published by Psyonix LLC. The game was initially released for Microsoft Windows and PlayStation 4 in July 2015, then later on being ported to other platforms like the Xbox One and the Nintendo Switch.
So far, MrBeast and the crew have only made a single video on this game on the gaming channel, titled The Best Rocket League Game Ever!. However, they made a video on the main channel titled Rocket League In Real Life!, although this video doesn't involve them directly playing the video game itself. It is possible that they'll make another video on this game in the future.