Provide a hidden message or image that can only be revealed using a UV light source.
Overlay
Red Overlay
A red overlay puzzle, also known as a red filter puzzle or red reveal puzzle, is a type of visual puzzle that requires participants to view an image or text through a red-tinted filter or overlay to reveal hidden information or a hidden message.
💡Tip: The overlay can be created by using red foil or red glasses.
Overlay transparencies use printed symbols or text on transparent sheets that appear fragmented or meaningless on their own. Only when the transparencies are layered in the correct order and orientation do the elements align to form a coherent message, symbol, or code.
Electronics
Screen
A simple screen can display images, symbols, or short videos that contain visual clues for the players.
Smartphoneas a search device
A tablet or smartphone camera can be used to reveal information only from a specific perspective or viewing angle.
Digital photo frame
A digital photo frame can show a sequence of images, each containing visual elements that together form a code or message.
Hidden Objects
Players must carefully search the room to find hidden clues, keys, or objects.
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