Crayon Physics Deluxe: Pay What You Want
From now until the 15th of January, the independent game, Crayon Physics Deluxe (77 at GameRankings) is for sale for whatever price you’d like to pay.

It’s a puzzle title with over 70 levels. In their B+ review, the Onion described it like this:
Each of the 70-plus levels occupies just one screen, and the objective seems like Baby’s First Video Game: Move the red circle to the yellow star. The question is how to get there. You could draw a pulley system to lug the circle over a burnt-sienna castle. Or maybe you sketch a seesaw under the circle, drop a two-ton trapezoid on the other end, and hope for the best.
It looks like this:
In their 8.8 review, IGN said:
This is such a simple yet brilliant puzzle game that anyone can pick up and enjoy. Needless to say, it’s a great game for kids as well as adults. Granted, it’s not the most challenging puzzle game ever made, but there’s a rare charm and a joy to it. You may think you’re too old for crayons, but give this game a chance and within no time you’ll be transported to your youth, grinning once more at the possibilities in front of you.
That is awesome.