Your Epic Games account is the glue that binds Fortnite together across all platforms. (You can register for an Epic Games account on the developer’s official site.) Regardless of where you’re playing, you need an Epic Games account if you want crossplay. As a concession to those who don’t want to play with console or mobile players, the Fill option is disabled when you’re in a cross-platform party on Mac and PC. On all platforms, Fortnite’s Squad Fill parties (see the gallery above) refer to players on whatever platform that you’re playing on. In Solo mode (which is designed to exclude teams), you’ll only be matched against solo PC players. Xbox One, and Nintendo Switch players who are in a cross-platform party - unless you’re playing Solo mode (see the gallery above). On PC, Fortnite will match you with mobile, PS4. Fortnite Squad Fill parties as seen in the bottom right of the Battle Royale main menu.
In Fortnite version 3.4, the Party Finder feature will search your Epic Games friends on other platforms.
