Crayon Physics Deluxe

Crayon Physics Deluxe is a puzzle video game designed by Petri Purho and released on January 5, 2009. An early version, titled Crayon Physics, was released for Windows in June 2007. Deluxe won the grand prize at the Independent Games Festival in 2008. It features a heavy emphasis on two-dimensional physics simulations, including gravity, mass, kinetic energy and transfer of momentum. The game includes a level editor and enables its players to download and share custom content via an online service.