It's an educational board game based on the French animated series Il était une fois... les Explorateurs (Once Upon a Time... The Explorers). The aim of the game is to find a treasure hidden in one of the locked chests. To open a chest, you have to find a key, but firs you have to complete a map by collecting map pieces. You start the game in a ship but if you sail to a harbor, you can explore several pieces of land. You collect coins, fish and water to survive and buy upgrades. In order to get a map piece or a key, you have to correctly answer a question related to geographic knowledge. You can also have sea battles with other players or send pirates to attack them.