its about Unreal engen programe terms

I was reading the terms and agreement and it says in it about a random audit what if the person is just wanting to use it to learn how to make games or something will they still get audited for it even though they don’t want to sell or anything they may make.

for what I understand if you have an economic gain fom Unreal engine you have to share it with epik in small part
If you want to make a cool videogame and play alone without sharing it is a free world