What do you understand by UDK in the unreal engine?

The ability to publish and sell games were made easy with Unreal Engine 3 yet there were restrictions to the licensees of this engine. Hence in the month of November 2009, the Epic Games released a new free version of Unreal engine 3 kits that were called the Unreal Development Kit or the UDK. It was let for the public to avail all the basic possible facilities.

In the month of December 2010, this kit was renewed for including supports for creating iOS model games and apps that was required for the modern mobiles, tabs, and others such.