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. 

Fortnite' Crossplay: How to Enable Switch, PS4, XBox, PC and Mobile Cross Platform Play [UPDATED]

Cross-Platform Play Now Finally Fully Supported On PlayStation 4 - GAMINGbible

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

Fortnite gets PS4-Xbox One crossplay due to configuration issue

The Best Crossplay Games to Play Right Now

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

A List of All PC / PS4 Crossplay Games : r/PS4

Fortnite is coming to iOS, will sport cross play with PC and PS4

How to Enable Crossplay in Fortnite (PS4, Xbox One, Switch, & PC)

Sony Finally Gives In And Allows Fortnite Cross-Play Between PS4, Switch And Everything Else

Dauntless Becomes First Game To Launch With PS4 Cross-Play - IGN

PlayStation Launches 'Fortnite' Cross-Platform Beta

Sony offers hope on PS4 console cross-play