Đánh Bài is a free offline card game for Android developed by 9ONE BIZ GAME. It features popular traditional Vietnamese card games such as Tiến Lên Miền Nam, Sâm Lốc, and Tá Lả - Phỏm. The game is designed for players of all levels and is perfect for those who enjoy playing card games offline.

The game offers two different modes - one where players can earn points without the need for pen and paper, and another where players can bet chips in a casino-style game with varying levels and bet amounts. The game is easy to understand and play and includes many features such as hints during gameplay and the ability to pause and save progress. Đánh Bài also includes daily rewards and bonuses, making it an enjoyable and rewarding experience for all players.