“We were willing to fight them in court if necessary,” says Epic CEO Tim Sweeney.

He’s explaining a June 2018 email he sent to Sony’s Phil Rosenberg, threatening that Fortnite cross-play would happen one way or another.

“Please inform Kodera-san, and please be clear, that Epic will enable full interoperability between all platforms in Fortnite at a timely point in the future ... we are prepared to pursue this course with all available resources, wherever it leads us, and for however long.”