My question is if I make a game on ue4, can I upload it to the epic games platform (when it is available), can I upload games made for android to the Play Store ?, I have to pay for this? Do I have to pay to sell my games made with UE4? if so, how much do I have to pay? Thank you.
You will owe 5% of gross revenue for your games. Please check out the EULA (section 5 covers royalties) for more information. EULA - Unreal Engine