Unblock Train is a puzzle game developed by x.apps for Android devices. The objective of the game is to unblock the green train and guide it to the station. The game features a variety of trains that can be pulled from both ends, but only the green train can enter the station.

The game offers 30 levels for free with ads, and after that, you can purchase an additional 100 levels and remove the ads for just one dollar. Unblock Train is a challenging game that requires strategic thinking and problem-solving skills. It's a great choice for puzzle game enthusiasts who enjoy a good mental challenge.