Crayon Physics Deluxe is a year old and following in the footsteps of 2D Boy's World of Goo they decided to also try a pay what you want sale on their game. WoG managed to sell 57,000 units with an average price of $2.03, but lost mucho bucko's to PayPal for transaction fees. The interesting thing here was that Steam sales rose 40% the following week, the sale making word spread farther.
Hopefully Crayon Physics Deluxe manages to also rake in the cash and thusly promote this type of sales event for the future.