Microsoft/343 Industries: “Halo 4” – ‘First Look’
[youtube=http://www.youtube.com/watch?w=640&h=480&v=f6UL63Zo-uo&hd=1]
Epic Games: Unreal Development Kit – ‘Inside UDK: Fall 2011 – Latest Build’ – 2011.08.23
[youtube=http://www.youtube.com/watch?w=640&h=480&v=iycQS_UCZhM&hd=1] Source/Fuente: Epic Games.