It's the best of UNO, matching blocks by color, number or symbol, mixed with an exciting stacking game that requires patience and balance. Players stack blocks by color, number or action – the taller the tower gets, the harder it is to stay intact! Gameplay combines the strategy of UNO with a block-stacking task requiring patience and finesse. Special graphic symbols on each block help identify the color(s) of that block, allowing players with any form of color blindness to easily play. Play UNO Stacko anywhere – it's easy fun for game nights with 2 to 10 players.