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

Epic Games will drop its royalty fees from 5% to 3.5% for developers that release eligible Unreal Engine games on Epic