Lost my Collection of 100 Shells is a unique hidden object game designed for Windows users, where players embark on a quest to find 100 hidden shells scattered throughout a beautifully illustrated backyard setting. The game features one large hand-drawn watercolor artwork that immerses players in a serene environment, enhanced by relaxing music and background sounds, making it an enjoyable experience for all ages.

The gameplay is straightforward, requiring players to use only their mouse or a combination of mouse and keyboard, as there are no hints, support, or zoom options available. This design choice adds an extra layer of challenge, encouraging players to rely on their observation skills. The game is designed to be completed in one sitting, as it lacks save slots and allows players to reset their progress after finishing, making it perfect for quick gaming sessions.