Microsoft reveals Sony is blocking Fortnite PS4 vs. Xbox One cross-play - The Verge

PS4 and Xbox One gamers will only be able to play Fortnite against PC, Mac, or mobile and not against each other

Epic vs. Apple court documents reveal why Sony was against cross-play for so long, and how this changed

Epic vs. Apple court documents reveal why Sony was against cross-play for so long, and how this changed

Fans Forcing Sony Into 'Fortnite' PS4 Crossplay Is A Watershed Moment For Gaming

Sony really hated PS4 crossplay, confidential documents reveal - The Verge

Microsoft vs Sony: UK regulator switches sides in $69 billion Activision Blizzard deal

Sony's blocking rights prove Xbox Game Pass is a runaway success

Sony's excuse for blocking PlayStation and Xbox cross-platform play is hostile and stupid - The Verge

Xbox One - Wikipedia

Microsoft claims Sony is keeping games off Game Pass by paying developers ' blocking rights

Fortnite will arrive on PS5 and Xbox Series X at launch - The Verge

Microsoft needs help from Sony for Xbox One vs PS4 multiplayer

Sony Explains Why Fortnite Doesn't Support Cross-Play on PS4

Here's Why PS4 and Xbox Players Can't Play Fortnite Together

PS4 vs Xbox One: Is this why Sony is beating Microsoft in console war - Daily Star