Water Games is an interactive Tic Tac Toe game which is made from a porcelain shell framed in a wood box. 2 Players dip their fingers in circles filled with water, which light up green or blue on contact. Underneath the porcelain unit lies a complex matrix of wires that make the magic happen. This game is a platform for many other games, using all range of colors. view the video below to see how the game works.