Simply 21 - Blackjack is a free Android card game developed by ExtraAndroary. It is a simple and addictive game that is easy to play and understand. The objective of the game is to place the poker cards on four stacks and reach 21 to complete, which is similar to Black Jack.

The game is powered by libgdx, which ensures smooth and seamless gameplay. The rules of the game are straightforward and easy to learn. Jack, Queen, and King are worth 10 points each, while an Ace can be worth 1 or 11 points. The game is designed to be played on mobile devices and is a great way to pass the time and hone your card skills.

Overall, Simply 21 - Blackjack is a fun and engaging card game that is perfect for players of all ages. It is a great way to test your card skills and challenge yourself. Download it today and start playing!