Herramientas para programar videojuegos

Microsoft XNA Game Studio 4.0
http://www.microsoft.com/en-us/download/details.aspx?id=23714


GameMaker
http://www.yoyogames.com/gamemaker/studio

PyGame
http://www.pygame.org/news.html


SimpleJ
http://www.simplej.com/

GameDevelop
http://www.compilgames.net/

Scratch
http://scratch.mit.edu/

Unity 3D
http://spanish.unity3d.com/

UDK
http://www.unrealengine.com/udk/