"What is essential is invisible to the eye."
This is a two-player cooperative game in which players arrange cards to create a travel route that allows the Little Prince to return home by retracing his steps back along the asteroids he visited on his way to Earth.
Both players must work together to complete the travel route by placing their cards. The route must be built in ascending order, but neither player can see which cards the other has placed along the route. Therefore, sometimes players must use their cards to gain information instead of simply placing them.
Additionally, each player is secretly assigned a personal mission they must complete. The nature of these two personal missions determines the shared mission that must be accomplished together.
Therefore, to figure out and fulfill the shared mission, you must guess what your opponent’s personal mission is. Since every choice your opponent makes during the game can provide meaningful clues, you must think carefully every turn.
If you analyze all the information carefully, this is a game where you can succeed in all missions through skill rather than luck. Help the Little Prince succeed so he can carry his sheep back safely to his own planet and watch the sunset with his rose.
—description from the designer