Hello, I am from Russia and I have a question if I make a game on your engine and want to sell it, for example, in steam. Do I have to give part of the money from sales or do I need to buy an engine before creating a game? Thank you in advance

[Blackforcedragon]

You need to pay Epic 5% of gross revenue after the first $3,000 per product per calendar quarter.

Here is a link with the info you need:

Frequently Asked Questions - Unreal Engine