Direct2Drive has revealed its deal of the week, offering up KlooniGames’ indie hit Crayon Physics Deluxe for 50% off the standard price. CPD is a 2D physics puzzle/sandbox game where players interact with crayon drawings as if they were real physical objects.

The IGF 2008 Grand Prize Winner packs over 70 levels, a level editor and more. The title runs $20 standard but can be had for half that through Sunday, November 22 on D2D.

A demo for the title is available via Steam.