Unreal Development Kit Beta Installer (May 2010)

3D game engine toolset available for free
Epic Games today released a new version of Unreal Development Kit (UDK), a free edition of Unreal Engine 3 that provides community access to this toolset like never before. This software release is available to anyone interested in using 3D game engine technology, including game developers, students, hobbyists, researchers, creators of 3D visualizations and simulations, and digital filmmakers. Anyone can start working with the Unreal Engine 3 toolset by downloading UDK.

Press Release: May 2010 UDK Beta
Website: http://www.udk.com/