VIRTRIX was invited by LOST HK to create the treasure hunt game app. The treasure hunt based Mobile App allows users to customize their own AR Avatar that retrieves the missing imperial treasure of "Star of The Ocean" in the hotel, after they finish their mission, they can take a selfie with their AR avatar and are awarded discounts for the hotel's restaurants. The app also includes AR clues and statues for players to physically engage with the hotel, as well as learning more about the hotel.