In 2008 MKO Games, a French independent studio, worked on a platform / adventure game prototype based on The Little Prince book. The project looked really nice, with a colorful style that was similar to the drawings that are in the book. Microsoft was interested in this proto for their Xbox 360, but they asked MKO to create a second prototype based on the art style of The Little Prince animated series created by Method Animations. Sadly neither of these prototypes was developed into a full game, maybe becaue Microsoft and other publishers seen The Little Prince as a “difficult” IP to sell to gamers.
Thanks to Superannuation for the contribution!