Vladislove··on Epic Games Store Launches on iPhone in EU, Brings Fortnite Back to iOSYou only have to connect the Epic account to Steam. The game itself doesn't launch through the Epic Store.
Vladislove··on Epic Games Store Launches on iPhone in EU, Brings Fortnite Back to iOSJust fyi, if you bought a copy of Rocket League through Steam, you can still play the game on it.