Blockchain Game is an Android arcade game developed by Bitcoin Aliens. It is free to download and play, and it runs smoothly on Android 9.0. The game's objective is to build the longest blockchain possible to win free bitcoin.

The game is addictive and fun, giving players a chance to earn real bitcoin that is sent directly to their bitcoin wallet. To build the blockchain, players stack blocks on top of each other, with longer chains resulting in higher rewards. The latest version of the game, version 4, offers more rewards and bigger prizes, making it even more exciting to play.

Overall, Blockchain Game is a unique and entertaining way to earn bitcoin while playing a game. It is easy to use, and the rewards system is motivating, encouraging players to build longer chains and earn more bitcoin. If you're looking for a fun way to earn bitcoin, give Blockchain Game a try.