[jmitcheson]

It's probably related to a recent change in policy - http://www.kickstarter.com/blog/kickstarter-is-not-a-store

"-Product simulations are prohibited. Projects cannot simulate events to demonstrate what a product might do in the future. Products can only be shown performing actions that they’re able to perform in their current state of development.

-Product renderings are prohibited. Product images must be photos of the prototype as it currently exists."

[necubi]

Those guidelines only apply to hardware and product design projects, not games.

[jere]

I considered that briefly but they made sure to clarify that it only applied to certain categories:

>The new guideline prohibiting renderings applies only to projects categorized as Product Design or Hardware. Other categories, including Games, are not affected.

Besides, that wouldn't at all explain why there is a complete lack of pitch videos or artwork (even like reward tier artwork).