There are many teams out there doing exciting things with UDK. One of the cool things we recently saw was the Beat-Em-Up Challenge on Polycount.
From the rules Polycount.com:
Here at Epic we are amazed at the quality that some of the applicants managed to create in just a few weeks and wanted to share these with the rest of the UDK community.For this challenge you will be creating an environment for a side-scroller beat-em-up!
This will be a 3D environment created for today’s console, PC or arcade market. Since this is a challenge, you will not be creating an environment from pre-existing ‘beat-em-up’ but rather you are responsible for designing and creating an original environment. That’s not to say, however, that your environment cannot be inspired by existing games.
These are just a few of the incredible levels done in UDK for this challenge:
Vincent Mayeur : ParoXum:
Chris Holden : cholden:
Kryon Gray : Kysterama:
Nate Broach : Skeptical Nate and Loren Broach : Keen:
Congrats to the winner and to all who competed, you guys really did a great job!
You can download and check out their work here: http://download.udk.com/showcase/Polycount.zip Remember this work was done in a short period of time with the goal of producing a short video and a screen shot, not necessarily representing best-practices or even the full extent of what the talented artists are capable of. It has not been tested on multiple versions of UDK, just the one that each artist used.