Double Shutter Whether you are looking for solitary entertainment, exciting competition or a cooperative challenge, Double Shutter is it! Roll the dice, add up the dots and find the best combination of numbered tiles to shut down. Have the lowest point total to win! In this addictive adding game of chance and strategy, the ultimate goal is to knock down both rows of tiles. Double Shutter is a fun educational game to help teach addition. Kids will want to play again and again until they shut the super box!