My game. help me

I am interested in one question.
I need to know where the information about the partnership
I have created a game with the unreal engine, I want to load on steam, I need to know the details of the contract about it. Seems to go a certain amount of interest in this company from sales! Would like to know the exact information what and how!
Thank you

Read the FAQ:

As stated in the FAQs, you will need to contact Epic Games as soon as you have planned to release your game in order to provide them the information they need.