The licensing terms for Epic's Unreal Development Kit (UDK) have changed such that under the new rules UDK licensees are not required to pay royalties on revenue earned from the use of UDK until that revenue exceeds US$50,000.
Posted by INtense! on Feb 25th, 2011
Great news for indie developers today, especially those developing UDK games. Epic has just updated the licencing terms so a royalty rate of 25% of sales is not payable until your game has earned more than US$50,000. This is a 10x jump from the previous amount of US$5,000 "We're really excited about folks making some amazing things with UDK and we realize that a lot of you are just started in the business so not having to pay royalties on your first $50,000 should help you get a financial footing toward building a quality game development business." said Epic VP and co-founder Mark Rein.
Here is an explanation from the licencing terms:
Top work on lifting the bar once again Epic!