Light or Dark is a two player children's board game set against the background of the world energy crisis, including cards, dice, hourglass, chess board and other related components. Players need to complete the task of curbing the spread of pollution and building new energy stations with limited time and energy. The purpose is for children to develop a sense of time, concentration and comprehensive strategy in cooperation and problem solving, and to experience a sense of crisis, a sense of urgency, a sense of mission and a sense of victory in challenging and interesting games.

The designers are two young people who are passionate about life. In daily life, they are full of curiosity and exploratory desire for new things, and like to pay attention to and think about some social topics. They believe that meaningful design can establish a connection between people and people with the specific environment, and designers should shoulder more social responsibilities, like a bridge connecting people with the world.