Quote Originally Posted by IzNoGoD View Post
they ask for 5% royalties over revenue (not profit)
However, first 3000/year is royalty-free.
It is not yearly, but every quarter.

When you ship a game or application, you pay a 5% royalty on gross revenue after the first $3,000 per product, per quarter. It’s a simple arrangement in which we succeed only when you succeed.
https://www.unrealengine.com/blog/ue4-is-free