As part of the new “Launch Everywhere with Epic” program, Epic is reducing the royalty rate for games built with Unreal Engine from 5 percent to 3.5 percent — however, those

Epic Games Unreal Fest showcases Unreal Engine 5.5 update: new experimental MegaLights technology, and more improvements across the board for UE5.5.

Epic Games announced it's reducing its royalty rates for Unreal games, but only if they're launched day one on its Store.