A list of various projects & level design concepts built with UDK.
InfiltrationGame
Built in 20 hours with UDK-2012-07 (Blocking + Scripting)
Links
Cathedral
Built in 16 hours with UDK-2012-07 (Blocking + Scripting)
Links
Al-Zaidi
Built in 8 hours with UDK-2013-02 (Blocking only)