https://www.theverge.com/2018/6/12/17453628/fortnite-nintendo-switch-cross-play-sony-ps4-microsoft-xbox-one-e3-2018

Today, Nintendo announced during its E3 press conference that Epic Games’ smash hit Fortnite would be coming to the Switch console. Not only that, but the game is arriving today at 1PM ET on the Switch digital store. Given that Fortnite is a free-to-play game that is played entirely online and supports accounts syncing, that raises some interesting questions about whether Switch players will be able to cross-play with those on other platforms.

When asked, Epic Games PR representative Nick Chester confirmed on Twitter that the Switch version of Fortnite will support cross-play with Xbox One, PC, Mac, and mobile. Basically, you’ll be able to play with everyone but PlayStation 4 players. That aligns with past cross-play implementations between Xbox One, PS4, PC, and mobile, with Sony blocking other console platforms from playing with its own. You can cross-play between PS4, mobile, and PC.