Unlock! is a series of escape adventures for up to six players. With one hour on the clock, players work through a deck of sixty cards as a team, searching for clues, combining objects, and solving puzzles. The free Unlock! companion app runs the timer while also providing clues, offering hints, and confirming successes. Once the team has reached a solution and entered the correct code into the app, they will escape and win the game! Unlock!: Les Escape Geeks – Échappez-vous de la Tour Eiffel ("Escape from the Eiffel Tower") is a level 1 adventure featuring Alex and other characters from the Unlock! novels from author Fabien Clavel and publisher Rageot, but no knowledge of these novels is required to solve this challenge.