Marvel Rivals destruction is a huge part of the game, but the devs struggled to make it work during development.

Instead of promo codes, payouts now depend on engagement. Creators also get 40% of Fortnite’s net revenue. That’s a serious ...

A learning process like the ones that led to the first Unreal and Gears of War, he adds. Darren Sugg, lead designer on Fortnite for about four years now, calls the game a kind of test case.

“Fortnite” was not Epic’s “first or second big hit,” he noted. That honor belongs to “Unreal Tournament,” the seminal sci-fi first-person shooter Epic released two decades ago that ...