Shadow Tag is a game often played by children, where one player, known as the "tagger," tries to touch or "tag" others by stepping on their shadows. The objective is to avoid being tagged while trying to tag others. The game encourages physical activity and social interaction among players. In Shadow Tag, players must be aware of their surroundings and the position of the sun, as the length and direction of shadows change throughout the day. This adds a strategic element to the game, as players can use their knowledge of light and shadow to evade the tagger effectively.