Full Crossplay Support Comes to PS4 Starting With 'Fortnite

The open beta allows crossplay, progression, and commerce across the PS4, Android, iOS, Nintendo Switch, Xbox One, PC, and Mac platforms. 

Microsoft Responds To PS4 Cross-Play News - GameSpot

Sony Gets With the Times, Adds PS4 Cross-Play Support for 'Fortnite

PlayStation chief on why Sony took so long to enable console cross-play

Fortnite PS4 Is Getting Cross-Play, Beta Starts Today

Sony's PS4 cross-play stance softens, giving Fortnite fans hope

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How to play Fortnite cross-platform with Nintendo Switch, iOS, Android, PS4, Mac, PC, and Xbox

An Epic cross-play journey: Paragon, Fortnite, and what comes next - Epic Online Services

Sony announces Fortnite PS4 crossplay with Nintendo Switch, Xbox One, PC, iOS, and Android

Sony Finally Enables Fortnite Cross Play Support On PlayStation 4: Open Beta Begins Now

Sony Announces Fortnite Cross-play Beta Between PS4, Switch, and More – NintendoSoup

Sony is blocking Fortnite cross-play between PS4 and Nintendo Switch players - The Verge

How to enable cross-platform Fortnite matches on all formats