300 Meters Under Lake Geneva

While leafing through the journals of one of your ancestors, you discover clues about a legendary crystal hidden in a sunken submarine at the bottom of Lake Geneva. Out of curiosity, you dive 300 meters deep to find this submersible, abandoned for decades. As soon as you board, a sinister creaking echoes through the metal corridors. Disaster! The airlock door slams shut abruptly. Around you, the hull of the submersible cracks under pressure, icy water seeping through the walls, signaling the imminence of disaster. The oppressive atmosphere weighs on your shoulders, but the promise of forgotten treasure drives your team to continue. Your only way out: solve the puzzles and find the crystal before the submersible becomes your tomb.