Crossover 21. Play online, play for free

Supported OS: Windows, OSX, Linux, Android, iOS

Browser requirements: requires HTML5 support

Crossover 21 is a puzzle card game that is a cross between Tetris and Blackjack. Your task is to arrange in the best possible way sets of cards of various denominations. If the sum of the cards on any of the rows is equal to twenty one, then you will earn points and the cards will disappear. If the sum of cards exceeds twenty-one, then they will block the corresponding cells.