Players on Epic Games Store, PlayStation, Xbox, Nintendo Switch, and Steam can randomly matchmake with or against each other in all Online Match types.
Cross-play is enabled by default. If you need to re-enable it, follow the steps below:
- Launch Rocket League
- Select Settings from the Main Menu
- Select the Gameplay tab
- Check the Cross-Platform Play box
For more info, check out: Cross-Platform Support Now Live in Rocket League.
You can also play with friends on different platforms in Private Matches. For more info, check out: How do I Create or Join a Private Match?