Challenge each other to a game of Blokus, a family game centered around strategy. This fun game from Mattel is easy to learn and great for players aged 7-years and above. To start, pick a color from green, blue, red and yellow. Each player gets 21 pieces in their color, and take turns to place their piece and occupy as much territory as possible. The only rule? Place each piece with corners touching another piece of the same color. Blokus will challenge your spatial reasoning and thinking abilities. Gender: unisex. Age Group: kids.