Tim Sweeney says getting PlayStation to bring down the barriers between its own console and its rivals' was a highlight of his career.
In a profile in The Wall Street Journal, the founder of Epic Games reflected on the origins of Fortnite and how cross-play helped to increase its popularity last year.
Sweeney is said to have initiated negotiations about introducing cross-play between Sony and Microsoft's devices, something he described as "an effort in international diplomacy."
"Given the long-term rivalries, it was a series of contentious discussions," he said.
At first only Nintendo and Xbox enabled cross-play between their consoles, announced at E3 last year. But Sony eventually relented and opened up the possibility of cross-play between PlayStation 4 and other devices for Fortnite and other select titles.
"It was one of the greatest moments in Epic's history," said Sweeney. "I was pleased and tired."

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