As per the tweet, PC players can play with Xbox One, PS4, Mac and Mobile gamers while Xbox One and PS4 players can do the same except their respective console counterparts, which means that Xbox One and PS4 players can play with people on PC, mac and Mobile but not against or with each other.
However this isn't necessarily a done deal yet.
"Fortnite" will soon be getting cross-platform support for the Xbox One allowing cross-play with PC, Mac, iOS, and Android players.
Unfortunately, Xbox One was woefully left off the list of platforms supporting cross-play functionality.
With Fortnite Mobile sign ups taking place later today, Epic Games and Microsoft have given fans fresh hope of cross-platform play between the two console versions. The original post made the mistake of only mentioning Sony in its cross-play partnership, saying that progression and gameplay between the PS4, PC, Mac, iOS and Android versions of the game will be seamless.
In a happy incident back in September past year, a bug in the game caused players from Xbox One and PS4 play together.
It does look like the cross-platform play could arrive for games like Fortnite, Minecraft, Rocket League, or any number of multiplayer games already released or yet to arrive - but only when Sony gives the go ahead.
Epic would later point out that cross-platform play is optional, with players having the choice to opt-in.
This includes the same map, the same unlockable content and even the same weekly updates.
PlayStation 4 players can play with PC, Mac, and mobile.