Comment by johnnyanmac

Yes. 12% cut from Epic, and I believe certain UE fees are waived if you release on EGS.

For UDK: they did get a lot better with that for UE4/5. These days, the first million dollars in that project's revenue has no cut, and after that it's a 5% royalties (there's also mandatory $1850 subscription seats per year if you have over a million gross revenue a year).

It's about as indie friendly as you can be for such an everpresent tool.